Home / 8,972.93-13,459.47-3,129.53

Finding the Fourth Proportional to 8,972.93, 13,459.47 and 3,129.53

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Solution

The fourth proportional to 8,972.93, 13,459.47 and 3,129.53 is: 4,694.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.93 : 13,459.47 = 3,129.53 : x
  2. Step 2: Convert to fraction form
    8,972.93/13,459.47 = 3,129.53/x
  3. Step 3: Cross multiply
    8,972.93x = 13,459.47 × 3,129.53
  4. Step 4: Simplify right side
    8,972.93x = 42,121,815.15
  5. Step 5: Solve for x
    x = 42,121,815.15/8,972.93
  6. Step 6: Final answer
    x = 4,694.32

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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.