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Finding the Fourth Proportional to 10,207.60, 15,304.20 and 3,965.20

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Solution

The fourth proportional to 10,207.60, 15,304.20 and 3,965.20 is: 5,945.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,207.60 : 15,304.20 = 3,965.20 : x
  2. Step 2: Convert to fraction form
    10,207.60/15,304.20 = 3,965.20/x
  3. Step 3: Cross multiply
    10,207.60x = 15,304.20 × 3,965.20
  4. Step 4: Simplify right side
    10,207.60x = 60,684,213.84
  5. Step 5: Solve for x
    x = 60,684,213.84/10,207.60
  6. Step 6: Final answer
    x = 5,945.00

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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.