Home / 18,217.79-25,146.84-10,666.55

Finding the Fourth Proportional to 18,217.79, 25,146.84 and 10,666.55

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Solution

The fourth proportional to 18,217.79, 25,146.84 and 10,666.55 is: 14,723.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.79 : 25,146.84 = 10,666.55 : x
  2. Step 2: Convert to fraction form
    18,217.79/25,146.84 = 10,666.55/x
  3. Step 3: Cross multiply
    18,217.79x = 25,146.84 × 10,666.55
  4. Step 4: Simplify right side
    18,217.79x = 268,229,987.62
  5. Step 5: Solve for x
    x = 268,229,987.62/18,217.79
  6. Step 6: Final answer
    x = 14,723.52

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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.