Home / 18,634.18-25,715.74-10,136.92

Finding the Fourth Proportional to 18,634.18, 25,715.74 and 10,136.92

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Solution

The fourth proportional to 18,634.18, 25,715.74 and 10,136.92 is: 13,989.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,634.18 : 25,715.74 = 10,136.92 : x
  2. Step 2: Convert to fraction form
    18,634.18/25,715.74 = 10,136.92/x
  3. Step 3: Cross multiply
    18,634.18x = 25,715.74 × 10,136.92
  4. Step 4: Simplify right side
    18,634.18x = 260,678,399.12
  5. Step 5: Solve for x
    x = 260,678,399.12/18,634.18
  6. Step 6: Final answer
    x = 13,989.26

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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.