Home / 18,493.90-25,520.30-10,427.84

Finding the Fourth Proportional to 18,493.90, 25,520.30 and 10,427.84

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Solution

The fourth proportional to 18,493.90, 25,520.30 and 10,427.84 is: 14,389.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,493.90 : 25,520.30 = 10,427.84 : x
  2. Step 2: Convert to fraction form
    18,493.90/25,520.30 = 10,427.84/x
  3. Step 3: Cross multiply
    18,493.90x = 25,520.30 × 10,427.84
  4. Step 4: Simplify right side
    18,493.90x = 266,121,553.01
  5. Step 5: Solve for x
    x = 266,121,553.01/18,493.90
  6. Step 6: Final answer
    x = 14,389.70

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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.