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Finding the Fourth Proportional to 15,002.09, 20,700.01 and 9,034.15

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Solution

The fourth proportional to 15,002.09, 20,700.01 and 9,034.15 is: 12,465.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,002.09 : 20,700.01 = 9,034.15 : x
  2. Step 2: Convert to fraction form
    15,002.09/20,700.01 = 9,034.15/x
  3. Step 3: Cross multiply
    15,002.09x = 20,700.01 × 9,034.15
  4. Step 4: Simplify right side
    15,002.09x = 187,006,921.01
  5. Step 5: Solve for x
    x = 187,006,921.01/15,002.09
  6. Step 6: Final answer
    x = 12,465.39

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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.