Home / 13,572.52-20,341.38-11,810.20

Finding the Fourth Proportional to 13,572.52, 20,341.38 and 11,810.20

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Solution

The fourth proportional to 13,572.52, 20,341.38 and 11,810.20 is: 17,700.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.52 : 20,341.38 = 11,810.20 : x
  2. Step 2: Convert to fraction form
    13,572.52/20,341.38 = 11,810.20/x
  3. Step 3: Cross multiply
    13,572.52x = 20,341.38 × 11,810.20
  4. Step 4: Simplify right side
    13,572.52x = 240,235,766.08
  5. Step 5: Solve for x
    x = 240,235,766.08/13,572.52
  6. Step 6: Final answer
    x = 17,700.16

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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.