Home / 7,755.28-11,616.72-5,150.32

Finding the Fourth Proportional to 7,755.28, 11,616.72 and 5,150.32

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Solution

The fourth proportional to 7,755.28, 11,616.72 and 5,150.32 is: 7,714.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755.28 : 11,616.72 = 5,150.32 : x
  2. Step 2: Convert to fraction form
    7,755.28/11,616.72 = 5,150.32/x
  3. Step 3: Cross multiply
    7,755.28x = 11,616.72 × 5,150.32
  4. Step 4: Simplify right side
    7,755.28x = 59,829,825.35
  5. Step 5: Solve for x
    x = 59,829,825.35/7,755.28
  6. Step 6: Final answer
    x = 7,714.72

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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.