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Finding the Fourth Proportional to 15,052.19, 20,753.12 and 9,665.10

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Solution

The fourth proportional to 15,052.19, 20,753.12 and 9,665.10 is: 13,325.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,052.19 : 20,753.12 = 9,665.10 : x
  2. Step 2: Convert to fraction form
    15,052.19/20,753.12 = 9,665.10/x
  3. Step 3: Cross multiply
    15,052.19x = 20,753.12 × 9,665.10
  4. Step 4: Simplify right side
    15,052.19x = 200,580,931.79
  5. Step 5: Solve for x
    x = 200,580,931.79/15,052.19
  6. Step 6: Final answer
    x = 13,325.70

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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.