Home / 18,531.36-27,777.12-8,006.35

Finding the Fourth Proportional to 18,531.36, 27,777.12 and 8,006.35

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Solution

The fourth proportional to 18,531.36, 27,777.12 and 8,006.35 is: 12,000.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,531.36 : 27,777.12 = 8,006.35 : x
  2. Step 2: Convert to fraction form
    18,531.36/27,777.12 = 8,006.35/x
  3. Step 3: Cross multiply
    18,531.36x = 27,777.12 × 8,006.35
  4. Step 4: Simplify right side
    18,531.36x = 222,393,344.71
  5. Step 5: Solve for x
    x = 222,393,344.71/18,531.36
  6. Step 6: Final answer
    x = 12,000.92

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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.