Home / 11,392.28-15,720.14-6,675.68

Finding the Fourth Proportional to 11,392.28, 15,720.14 and 6,675.68

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Solution

The fourth proportional to 11,392.28, 15,720.14 and 6,675.68 is: 9,211.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.28 : 15,720.14 = 6,675.68 : x
  2. Step 2: Convert to fraction form
    11,392.28/15,720.14 = 6,675.68/x
  3. Step 3: Cross multiply
    11,392.28x = 15,720.14 × 6,675.68
  4. Step 4: Simplify right side
    11,392.28x = 104,942,624.20
  5. Step 5: Solve for x
    x = 104,942,624.20/11,392.28
  6. Step 6: Final answer
    x = 9,211.73

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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.