Home / 14,005.73-21,008.17-5,685.55

Finding the Fourth Proportional to 14,005.73, 21,008.17 and 5,685.55

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Solution

The fourth proportional to 14,005.73, 21,008.17 and 5,685.55 is: 8,528.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,005.73 : 21,008.17 = 5,685.55 : x
  2. Step 2: Convert to fraction form
    14,005.73/21,008.17 = 5,685.55/x
  3. Step 3: Cross multiply
    14,005.73x = 21,008.17 × 5,685.55
  4. Step 4: Simplify right side
    14,005.73x = 119,442,934.21
  5. Step 5: Solve for x
    x = 119,442,934.21/14,005.73
  6. Step 6: Final answer
    x = 8,528.15

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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.