Home / 13,154.52-18,149.99-8,445.18

Finding the Fourth Proportional to 13,154.52, 18,149.99 and 8,445.18

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Solution

The fourth proportional to 13,154.52, 18,149.99 and 8,445.18 is: 11,652.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,154.52 : 18,149.99 = 8,445.18 : x
  2. Step 2: Convert to fraction form
    13,154.52/18,149.99 = 8,445.18/x
  3. Step 3: Cross multiply
    13,154.52x = 18,149.99 × 8,445.18
  4. Step 4: Simplify right side
    13,154.52x = 153,279,890.32
  5. Step 5: Solve for x
    x = 153,279,890.32/13,154.52
  6. Step 6: Final answer
    x = 11,652.26

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Double scale
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Similar ratio
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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.