Home / 18,293.20-25,244.55-9,909.70

Finding the Fourth Proportional to 18,293.20, 25,244.55 and 9,909.70

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Solution

The fourth proportional to 18,293.20, 25,244.55 and 9,909.70 is: 13,675.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,293.20 : 25,244.55 = 9,909.70 : x
  2. Step 2: Convert to fraction form
    18,293.20/25,244.55 = 9,909.70/x
  3. Step 3: Cross multiply
    18,293.20x = 25,244.55 × 9,909.70
  4. Step 4: Simplify right side
    18,293.20x = 250,165,917.14
  5. Step 5: Solve for x
    x = 250,165,917.14/18,293.20
  6. Step 6: Final answer
    x = 13,675.35

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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.