Home / 8,446.15-11,591.35-7,775.47

Finding the Fourth Proportional to 8,446.15, 11,591.35 and 7,775.47

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Solution

The fourth proportional to 8,446.15, 11,591.35 and 7,775.47 is: 10,670.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,446.15 : 11,591.35 = 7,775.47 : x
  2. Step 2: Convert to fraction form
    8,446.15/11,591.35 = 7,775.47/x
  3. Step 3: Cross multiply
    8,446.15x = 11,591.35 × 7,775.47
  4. Step 4: Simplify right side
    8,446.15x = 90,128,194.18
  5. Step 5: Solve for x
    x = 90,128,194.18/8,446.15
  6. Step 6: Final answer
    x = 10,670.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.