Home / 18,279.92-25,226.20-9,896.40

Finding the Fourth Proportional to 18,279.92, 25,226.20 and 9,896.40

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Solution

The fourth proportional to 18,279.92, 25,226.20 and 9,896.40 is: 13,656.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.92 : 25,226.20 = 9,896.40 : x
  2. Step 2: Convert to fraction form
    18,279.92/25,226.20 = 9,896.40/x
  3. Step 3: Cross multiply
    18,279.92x = 25,226.20 × 9,896.40
  4. Step 4: Simplify right side
    18,279.92x = 249,648,565.68
  5. Step 5: Solve for x
    x = 249,648,565.68/18,279.92
  6. Step 6: Final answer
    x = 13,656.98

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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.