Home / 18,281.95-25,229.10-9,898.45

Finding the Fourth Proportional to 18,281.95, 25,229.10 and 9,898.45

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Solution

The fourth proportional to 18,281.95, 25,229.10 and 9,898.45 is: 13,659.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.95 : 25,229.10 = 9,898.45 : x
  2. Step 2: Convert to fraction form
    18,281.95/25,229.10 = 9,898.45/x
  3. Step 3: Cross multiply
    18,281.95x = 25,229.10 × 9,898.45
  4. Step 4: Simplify right side
    18,281.95x = 249,729,017.34
  5. Step 5: Solve for x
    x = 249,729,017.34/18,281.95
  6. Step 6: Final answer
    x = 13,659.87

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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.