Home / 10,074.76-15,117.24-7,132.12

Finding the Fourth Proportional to 10,074.76, 15,117.24 and 7,132.12

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Solution

The fourth proportional to 10,074.76, 15,117.24 and 7,132.12 is: 10,701.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,074.76 : 15,117.24 = 7,132.12 : x
  2. Step 2: Convert to fraction form
    10,074.76/15,117.24 = 7,132.12/x
  3. Step 3: Cross multiply
    10,074.76x = 15,117.24 × 7,132.12
  4. Step 4: Simplify right side
    10,074.76x = 107,817,969.75
  5. Step 5: Solve for x
    x = 107,817,969.75/10,074.76
  6. Step 6: Final answer
    x = 10,701.79

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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.