Home / 18,117.95-25,003.01-10,946.86

Finding the Fourth Proportional to 18,117.95, 25,003.01 and 10,946.86

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Solution

The fourth proportional to 18,117.95, 25,003.01 and 10,946.86 is: 15,106.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.95 : 25,003.01 = 10,946.86 : x
  2. Step 2: Convert to fraction form
    18,117.95/25,003.01 = 10,946.86/x
  3. Step 3: Cross multiply
    18,117.95x = 25,003.01 × 10,946.86
  4. Step 4: Simplify right side
    18,117.95x = 273,704,414.91
  5. Step 5: Solve for x
    x = 273,704,414.91/18,117.95
  6. Step 6: Final answer
    x = 15,106.81

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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.