Home / 18,217.60-25,140.38-10,259.96

Finding the Fourth Proportional to 18,217.60, 25,140.38 and 10,259.96

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Solution

The fourth proportional to 18,217.60, 25,140.38 and 10,259.96 is: 14,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.60 : 25,140.38 = 10,259.96 : x
  2. Step 2: Convert to fraction form
    18,217.60/25,140.38 = 10,259.96/x
  3. Step 3: Cross multiply
    18,217.60x = 25,140.38 × 10,259.96
  4. Step 4: Simplify right side
    18,217.60x = 257,939,293.18
  5. Step 5: Solve for x
    x = 257,939,293.18/18,217.60
  6. Step 6: Final answer
    x = 14,158.80

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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.