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Finding the Fourth Proportional to 18,291.26, 27,427.08 and 5,807.90

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Solution

The fourth proportional to 18,291.26, 27,427.08 and 5,807.90 is: 8,708.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291.26 : 27,427.08 = 5,807.90 : x
  2. Step 2: Convert to fraction form
    18,291.26/27,427.08 = 5,807.90/x
  3. Step 3: Cross multiply
    18,291.26x = 27,427.08 × 5,807.90
  4. Step 4: Simplify right side
    18,291.26x = 159,293,737.93
  5. Step 5: Solve for x
    x = 159,293,737.93/18,291.26
  6. Step 6: Final answer
    x = 8,708.74

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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.