Home / 18,472.85-25,489.77-10,405.35

Finding the Fourth Proportional to 18,472.85, 25,489.77 and 10,405.35

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Solution

The fourth proportional to 18,472.85, 25,489.77 and 10,405.35 is: 14,357.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,472.85 : 25,489.77 = 10,405.35 : x
  2. Step 2: Convert to fraction form
    18,472.85/25,489.77 = 10,405.35/x
  3. Step 3: Cross multiply
    18,472.85x = 25,489.77 × 10,405.35
  4. Step 4: Simplify right side
    18,472.85x = 265,229,863.17
  5. Step 5: Solve for x
    x = 265,229,863.17/18,472.85
  6. Step 6: Final answer
    x = 14,357.82

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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.