Home / 18,139.50-25,032.60-10,591.02

Finding the Fourth Proportional to 18,139.50, 25,032.60 and 10,591.02

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Solution

The fourth proportional to 18,139.50, 25,032.60 and 10,591.02 is: 14,615.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.50 : 25,032.60 = 10,591.02 : x
  2. Step 2: Convert to fraction form
    18,139.50/25,032.60 = 10,591.02/x
  3. Step 3: Cross multiply
    18,139.50x = 25,032.60 × 10,591.02
  4. Step 4: Simplify right side
    18,139.50x = 265,120,767.25
  5. Step 5: Solve for x
    x = 265,120,767.25/18,139.50
  6. Step 6: Final answer
    x = 14,615.66

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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.