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Finding the Fourth Proportional to 15,477.90, 23,216.85 and 7,701.90

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Solution

The fourth proportional to 15,477.90, 23,216.85 and 7,701.90 is: 11,552.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,477.90 : 23,216.85 = 7,701.90 : x
  2. Step 2: Convert to fraction form
    15,477.90/23,216.85 = 7,701.90/x
  3. Step 3: Cross multiply
    15,477.90x = 23,216.85 × 7,701.90
  4. Step 4: Simplify right side
    15,477.90x = 178,813,857.02
  5. Step 5: Solve for x
    x = 178,813,857.02/15,477.90
  6. Step 6: Final answer
    x = 11,552.85

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.