Home / 18,136.62-25,026.12-10,178.76

Finding the Fourth Proportional to 18,136.62, 25,026.12 and 10,178.76

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Solution

The fourth proportional to 18,136.62, 25,026.12 and 10,178.76 is: 14,045.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,136.62 : 25,026.12 = 10,178.76 : x
  2. Step 2: Convert to fraction form
    18,136.62/25,026.12 = 10,178.76/x
  3. Step 3: Cross multiply
    18,136.62x = 25,026.12 × 10,178.76
  4. Step 4: Simplify right side
    18,136.62x = 254,734,869.21
  5. Step 5: Solve for x
    x = 254,734,869.21/18,136.62
  6. Step 6: Final answer
    x = 14,045.33

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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.