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Finding the Fourth Proportional to 18,331.52, 27,501.93 and 8,477.87

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Solution

The fourth proportional to 18,331.52, 27,501.93 and 8,477.87 is: 12,718.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331.52 : 27,501.93 = 8,477.87 : x
  2. Step 2: Convert to fraction form
    18,331.52/27,501.93 = 8,477.87/x
  3. Step 3: Cross multiply
    18,331.52x = 27,501.93 × 8,477.87
  4. Step 4: Simplify right side
    18,331.52x = 233,157,649.78
  5. Step 5: Solve for x
    x = 233,157,649.78/18,331.52
  6. Step 6: Final answer
    x = 12,718.95

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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.