Home / 18,149.79-25,035.85-11,423.74

Finding the Fourth Proportional to 18,149.79, 25,035.85 and 11,423.74

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Solution

The fourth proportional to 18,149.79, 25,035.85 and 11,423.74 is: 15,757.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,149.79 : 25,035.85 = 11,423.74 : x
  2. Step 2: Convert to fraction form
    18,149.79/25,035.85 = 11,423.74/x
  3. Step 3: Cross multiply
    18,149.79x = 25,035.85 × 11,423.74
  4. Step 4: Simplify right side
    18,149.79x = 286,003,041.08
  5. Step 5: Solve for x
    x = 286,003,041.08/18,149.79
  6. Step 6: Final answer
    x = 15,757.93

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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.