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Finding the Fourth Proportional to 7,850.64, 11,776.32 and 5,552.40

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Solution

The fourth proportional to 7,850.64, 11,776.32 and 5,552.40 is: 8,328.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,850.64 : 11,776.32 = 5,552.40 : x
  2. Step 2: Convert to fraction form
    7,850.64/11,776.32 = 5,552.40/x
  3. Step 3: Cross multiply
    7,850.64x = 11,776.32 × 5,552.40
  4. Step 4: Simplify right side
    7,850.64x = 65,386,839.17
  5. Step 5: Solve for x
    x = 65,386,839.17/7,850.64
  6. Step 6: Final answer
    x = 8,328.85

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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.