Home / 9,267.20-12,775.56-5,728.40

Finding the Fourth Proportional to 9,267.20, 12,775.56 and 5,728.40

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Solution

The fourth proportional to 9,267.20, 12,775.56 and 5,728.40 is: 7,897.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,267.20 : 12,775.56 = 5,728.40 : x
  2. Step 2: Convert to fraction form
    9,267.20/12,775.56 = 5,728.40/x
  3. Step 3: Cross multiply
    9,267.20x = 12,775.56 × 5,728.40
  4. Step 4: Simplify right side
    9,267.20x = 73,183,517.90
  5. Step 5: Solve for x
    x = 73,183,517.90/9,267.20
  6. Step 6: Final answer
    x = 7,897.05

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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.