Home / 18,489.92-25,515.96-10,106.42

Finding the Fourth Proportional to 18,489.92, 25,515.96 and 10,106.42

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Solution

The fourth proportional to 18,489.92, 25,515.96 and 10,106.42 is: 13,946.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,489.92 : 25,515.96 = 10,106.42 : x
  2. Step 2: Convert to fraction form
    18,489.92/25,515.96 = 10,106.42/x
  3. Step 3: Cross multiply
    18,489.92x = 25,515.96 × 10,106.42
  4. Step 4: Simplify right side
    18,489.92x = 257,875,008.46
  5. Step 5: Solve for x
    x = 257,875,008.46/18,489.92
  6. Step 6: Final answer
    x = 13,946.79

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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.