Home / 18,217.47-25,140.20-10,259.84

Finding the Fourth Proportional to 18,217.47, 25,140.20 and 10,259.84

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Solution

The fourth proportional to 18,217.47, 25,140.20 and 10,259.84 is: 14,158.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.47 : 25,140.20 = 10,259.84 : x
  2. Step 2: Convert to fraction form
    18,217.47/25,140.20 = 10,259.84/x
  3. Step 3: Cross multiply
    18,217.47x = 25,140.20 × 10,259.84
  4. Step 4: Simplify right side
    18,217.47x = 257,934,252.57
  5. Step 5: Solve for x
    x = 257,934,252.57/18,217.47
  6. Step 6: Final answer
    x = 14,158.62

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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.