Home / 19,005.90-28,508.85-11,132.70

Finding the Fourth Proportional to 19,005.90, 28,508.85 and 11,132.70

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Solution

The fourth proportional to 19,005.90, 28,508.85 and 11,132.70 is: 16,699.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.90 : 28,508.85 = 11,132.70 : x
  2. Step 2: Convert to fraction form
    19,005.90/28,508.85 = 11,132.70/x
  3. Step 3: Cross multiply
    19,005.90x = 28,508.85 × 11,132.70
  4. Step 4: Simplify right side
    19,005.90x = 317,380,474.40
  5. Step 5: Solve for x
    x = 317,380,474.40/19,005.90
  6. Step 6: Final answer
    x = 16,699.05

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Similar ratio
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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.