Home / 17,139.60-25,708.32-5,461.20

Finding the Fourth Proportional to 17,139.60, 25,708.32 and 5,461.20

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Solution

The fourth proportional to 17,139.60, 25,708.32 and 5,461.20 is: 8,191.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,139.60 : 25,708.32 = 5,461.20 : x
  2. Step 2: Convert to fraction form
    17,139.60/25,708.32 = 5,461.20/x
  3. Step 3: Cross multiply
    17,139.60x = 25,708.32 × 5,461.20
  4. Step 4: Simplify right side
    17,139.60x = 140,398,277.18
  5. Step 5: Solve for x
    x = 140,398,277.18/17,139.60
  6. Step 6: Final answer
    x = 8,191.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.