Home / 13,469.14-18,559.20-12,534.76

Finding the Fourth Proportional to 13,469.14, 18,559.20 and 12,534.76

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Solution

The fourth proportional to 13,469.14, 18,559.20 and 12,534.76 is: 17,271.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,469.14 : 18,559.20 = 12,534.76 : x
  2. Step 2: Convert to fraction form
    13,469.14/18,559.20 = 12,534.76/x
  3. Step 3: Cross multiply
    13,469.14x = 18,559.20 × 12,534.76
  4. Step 4: Simplify right side
    13,469.14x = 232,635,117.79
  5. Step 5: Solve for x
    x = 232,635,117.79/13,469.14
  6. Step 6: Final answer
    x = 17,271.71

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Half scale
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Double scale
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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.