Home / 12,700.46-17,517.66-10,929.02

Finding the Fourth Proportional to 12,700.46, 17,517.66 and 10,929.02

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Solution

The fourth proportional to 12,700.46, 17,517.66 and 10,929.02 is: 15,074.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700.46 : 17,517.66 = 10,929.02 : x
  2. Step 2: Convert to fraction form
    12,700.46/17,517.66 = 10,929.02/x
  3. Step 3: Cross multiply
    12,700.46x = 17,517.66 × 10,929.02
  4. Step 4: Simplify right side
    12,700.46x = 191,450,856.49
  5. Step 5: Solve for x
    x = 191,450,856.49/12,700.46
  6. Step 6: Final answer
    x = 15,074.32

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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.