Home / 9,477.85-13,079.40-5,229.18

Finding the Fourth Proportional to 9,477.85, 13,079.40 and 5,229.18

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Solution

The fourth proportional to 9,477.85, 13,079.40 and 5,229.18 is: 7,216.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,477.85 : 13,079.40 = 5,229.18 : x
  2. Step 2: Convert to fraction form
    9,477.85/13,079.40 = 5,229.18/x
  3. Step 3: Cross multiply
    9,477.85x = 13,079.40 × 5,229.18
  4. Step 4: Simplify right side
    9,477.85x = 68,394,536.89
  5. Step 5: Solve for x
    x = 68,394,536.89/9,477.85
  6. Step 6: Final answer
    x = 7,216.25

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.