Home / 18,117.60-25,002.40-10,159.94

Finding the Fourth Proportional to 18,117.60, 25,002.40 and 10,159.94

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Solution

The fourth proportional to 18,117.60, 25,002.40 and 10,159.94 is: 14,020.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.60 : 25,002.40 = 10,159.94 : x
  2. Step 2: Convert to fraction form
    18,117.60/25,002.40 = 10,159.94/x
  3. Step 3: Cross multiply
    18,117.60x = 25,002.40 × 10,159.94
  4. Step 4: Simplify right side
    18,117.60x = 254,022,883.86
  5. Step 5: Solve for x
    x = 254,022,883.86/18,117.60
  6. Step 6: Final answer
    x = 14,020.78

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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.