Home / 18,275.85-25,220.67-9,892.35

Finding the Fourth Proportional to 18,275.85, 25,220.67 and 9,892.35

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Solution

The fourth proportional to 18,275.85, 25,220.67 and 9,892.35 is: 13,651.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.85 : 25,220.67 = 9,892.35 : x
  2. Step 2: Convert to fraction form
    18,275.85/25,220.67 = 9,892.35/x
  3. Step 3: Cross multiply
    18,275.85x = 25,220.67 × 9,892.35
  4. Step 4: Simplify right side
    18,275.85x = 249,491,694.87
  5. Step 5: Solve for x
    x = 249,491,694.87/18,275.85
  6. Step 6: Final answer
    x = 13,651.44

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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.