Home / 18,275.35-25,219.98-9,891.85

Finding the Fourth Proportional to 18,275.35, 25,219.98 and 9,891.85

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Solution

The fourth proportional to 18,275.35, 25,219.98 and 9,891.85 is: 13,650.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.35 : 25,219.98 = 9,891.85 : x
  2. Step 2: Convert to fraction form
    18,275.35/25,219.98 = 9,891.85/x
  3. Step 3: Cross multiply
    18,275.35x = 25,219.98 × 9,891.85
  4. Step 4: Simplify right side
    18,275.35x = 249,472,259.16
  5. Step 5: Solve for x
    x = 249,472,259.16/18,275.35
  6. Step 6: Final answer
    x = 13,650.75

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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.