Home / 15,712.40-23,559.68-5,179.56

Finding the Fourth Proportional to 15,712.40, 23,559.68 and 5,179.56

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Solution

The fourth proportional to 15,712.40, 23,559.68 and 5,179.56 is: 7,766.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,712.40 : 23,559.68 = 5,179.56 : x
  2. Step 2: Convert to fraction form
    15,712.40/23,559.68 = 5,179.56/x
  3. Step 3: Cross multiply
    15,712.40x = 23,559.68 × 5,179.56
  4. Step 4: Simplify right side
    15,712.40x = 122,028,776.14
  5. Step 5: Solve for x
    x = 122,028,776.14/15,712.40
  6. Step 6: Final answer
    x = 7,766.40

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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.