Home / 17,987.28-24,830.55-13,198.77

Finding the Fourth Proportional to 17,987.28, 24,830.55 and 13,198.77

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Solution

The fourth proportional to 17,987.28, 24,830.55 and 13,198.77 is: 18,220.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,987.28 : 24,830.55 = 13,198.77 : x
  2. Step 2: Convert to fraction form
    17,987.28/24,830.55 = 13,198.77/x
  3. Step 3: Cross multiply
    17,987.28x = 24,830.55 × 13,198.77
  4. Step 4: Simplify right side
    17,987.28x = 327,732,528.28
  5. Step 5: Solve for x
    x = 327,732,528.28/17,987.28
  6. Step 6: Final answer
    x = 18,220.24

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Half scale
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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.