Home / 18,489.93-25,516.13-10,106.43

Finding the Fourth Proportional to 18,489.93, 25,516.13 and 10,106.43

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Solution

The fourth proportional to 18,489.93, 25,516.13 and 10,106.43 is: 13,946.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,489.93 : 25,516.13 = 10,106.43 : x
  2. Step 2: Convert to fraction form
    18,489.93/25,516.13 = 10,106.43/x
  3. Step 3: Cross multiply
    18,489.93x = 25,516.13 × 10,106.43
  4. Step 4: Simplify right side
    18,489.93x = 257,876,931.18
  5. Step 5: Solve for x
    x = 257,876,931.18/18,489.93
  6. Step 6: Final answer
    x = 13,946.89

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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.