Home / 18,066.55-27,088.25-8,687.89

Finding the Fourth Proportional to 18,066.55, 27,088.25 and 8,687.89

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Solution

The fourth proportional to 18,066.55, 27,088.25 and 8,687.89 is: 13,026.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,066.55 : 27,088.25 = 8,687.89 : x
  2. Step 2: Convert to fraction form
    18,066.55/27,088.25 = 8,687.89/x
  3. Step 3: Cross multiply
    18,066.55x = 27,088.25 × 8,687.89
  4. Step 4: Simplify right side
    18,066.55x = 235,339,557.41
  5. Step 5: Solve for x
    x = 235,339,557.41/18,066.55
  6. Step 6: Final answer
    x = 13,026.26

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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.