Home / 13,712.83-20,565.02-7,135.43

Finding the Fourth Proportional to 13,712.83, 20,565.02 and 7,135.43

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Solution

The fourth proportional to 13,712.83, 20,565.02 and 7,135.43 is: 10,700.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.83 : 20,565.02 = 7,135.43 : x
  2. Step 2: Convert to fraction form
    13,712.83/20,565.02 = 7,135.43/x
  3. Step 3: Cross multiply
    13,712.83x = 20,565.02 × 7,135.43
  4. Step 4: Simplify right side
    13,712.83x = 146,740,175.67
  5. Step 5: Solve for x
    x = 146,740,175.67/13,712.83
  6. Step 6: Final answer
    x = 10,700.94

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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.