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Finding the Fourth Proportional to 17,002.40, 25,503.60 and 9,129.20

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Solution

The fourth proportional to 17,002.40, 25,503.60 and 9,129.20 is: 13,693.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,002.40 : 25,503.60 = 9,129.20 : x
  2. Step 2: Convert to fraction form
    17,002.40/25,503.60 = 9,129.20/x
  3. Step 3: Cross multiply
    17,002.40x = 25,503.60 × 9,129.20
  4. Step 4: Simplify right side
    17,002.40x = 232,827,465.12
  5. Step 5: Solve for x
    x = 232,827,465.12/17,002.40
  6. Step 6: Final answer
    x = 13,693.80

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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.