Home / 15,511.50-23,270.90-5,123.25

Finding the Fourth Proportional to 15,511.50, 23,270.90 and 5,123.25

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Solution

The fourth proportional to 15,511.50, 23,270.90 and 5,123.25 is: 7,686.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,511.50 : 23,270.90 = 5,123.25 : x
  2. Step 2: Convert to fraction form
    15,511.50/23,270.90 = 5,123.25/x
  3. Step 3: Cross multiply
    15,511.50x = 23,270.90 × 5,123.25
  4. Step 4: Simplify right side
    15,511.50x = 119,222,612.81
  5. Step 5: Solve for x
    x = 119,222,612.81/15,511.50
  6. Step 6: Final answer
    x = 7,686.08

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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.