Home / 13,322.94-18,387.90-12,732.46

Finding the Fourth Proportional to 13,322.94, 18,387.90 and 12,732.46

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Solution

The fourth proportional to 13,322.94, 18,387.90 and 12,732.46 is: 17,572.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.94 : 18,387.90 = 12,732.46 : x
  2. Step 2: Convert to fraction form
    13,322.94/18,387.90 = 12,732.46/x
  3. Step 3: Cross multiply
    13,322.94x = 18,387.90 × 12,732.46
  4. Step 4: Simplify right side
    13,322.94x = 234,123,201.23
  5. Step 5: Solve for x
    x = 234,123,201.23/13,322.94
  6. Step 6: Final answer
    x = 17,572.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.