Home / 14,572.30-20,109.20-8,605.88

Finding the Fourth Proportional to 14,572.30, 20,109.20 and 8,605.88

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Solution

The fourth proportional to 14,572.30, 20,109.20 and 8,605.88 is: 11,875.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,572.30 : 20,109.20 = 8,605.88 : x
  2. Step 2: Convert to fraction form
    14,572.30/20,109.20 = 8,605.88/x
  3. Step 3: Cross multiply
    14,572.30x = 20,109.20 × 8,605.88
  4. Step 4: Simplify right side
    14,572.30x = 173,057,362.10
  5. Step 5: Solve for x
    x = 173,057,362.10/14,572.30
  6. Step 6: Final answer
    x = 11,875.78

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1.5x scale

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.