Home / 9,090.15-12,550.62-6,961.92

Finding the Fourth Proportional to 9,090.15, 12,550.62 and 6,961.92

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Solution

The fourth proportional to 9,090.15, 12,550.62 and 6,961.92 is: 9,612.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.15 : 12,550.62 = 6,961.92 : x
  2. Step 2: Convert to fraction form
    9,090.15/12,550.62 = 6,961.92/x
  3. Step 3: Cross multiply
    9,090.15x = 12,550.62 × 6,961.92
  4. Step 4: Simplify right side
    9,090.15x = 87,376,412.39
  5. Step 5: Solve for x
    x = 87,376,412.39/9,090.15
  6. Step 6: Final answer
    x = 9,612.21

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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.