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Finding the Fourth Proportional to 13,324.80, 19,987.20 and 11,210.70

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Solution

The fourth proportional to 13,324.80, 19,987.20 and 11,210.70 is: 16,816.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.80 : 19,987.20 = 11,210.70 : x
  2. Step 2: Convert to fraction form
    13,324.80/19,987.20 = 11,210.70/x
  3. Step 3: Cross multiply
    13,324.80x = 19,987.20 × 11,210.70
  4. Step 4: Simplify right side
    13,324.80x = 224,070,503.04
  5. Step 5: Solve for x
    x = 224,070,503.04/13,324.80
  6. Step 6: Final answer
    x = 16,816.05

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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.