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Finding the Fourth Proportional to 18,089.70, 27,134.55 and 8,701.13

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Solution

The fourth proportional to 18,089.70, 27,134.55 and 8,701.13 is: 13,051.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,089.70 : 27,134.55 = 8,701.13 : x
  2. Step 2: Convert to fraction form
    18,089.70/27,134.55 = 8,701.13/x
  3. Step 3: Cross multiply
    18,089.70x = 27,134.55 × 8,701.13
  4. Step 4: Simplify right side
    18,089.70x = 236,101,111.37
  5. Step 5: Solve for x
    x = 236,101,111.37/18,089.70
  6. Step 6: Final answer
    x = 13,051.69

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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.