Home / 7,910.89-10,917.17-4,374.12

Finding the Fourth Proportional to 7,910.89, 10,917.17 and 4,374.12

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Solution

The fourth proportional to 7,910.89, 10,917.17 and 4,374.12 is: 6,036.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,910.89 : 10,917.17 = 4,374.12 : x
  2. Step 2: Convert to fraction form
    7,910.89/10,917.17 = 4,374.12/x
  3. Step 3: Cross multiply
    7,910.89x = 10,917.17 × 4,374.12
  4. Step 4: Simplify right side
    7,910.89x = 47,753,011.64
  5. Step 5: Solve for x
    x = 47,753,011.64/7,910.89
  6. Step 6: Final answer
    x = 6,036.36

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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.