Home / 9,230.20-12,747.18-7,113.40

Finding the Fourth Proportional to 9,230.20, 12,747.18 and 7,113.40

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Solution

The fourth proportional to 9,230.20, 12,747.18 and 7,113.40 is: 9,823.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,230.20 : 12,747.18 = 7,113.40 : x
  2. Step 2: Convert to fraction form
    9,230.20/12,747.18 = 7,113.40/x
  3. Step 3: Cross multiply
    9,230.20x = 12,747.18 × 7,113.40
  4. Step 4: Simplify right side
    9,230.20x = 90,675,790.21
  5. Step 5: Solve for x
    x = 90,675,790.21/9,230.20
  6. Step 6: Final answer
    x = 9,823.82

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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.