Home / 8,341.31-11,484.78-7,079.74

Finding the Fourth Proportional to 8,341.31, 11,484.78 and 7,079.74

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Solution

The fourth proportional to 8,341.31, 11,484.78 and 7,079.74 is: 9,747.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,341.31 : 11,484.78 = 7,079.74 : x
  2. Step 2: Convert to fraction form
    8,341.31/11,484.78 = 7,079.74/x
  3. Step 3: Cross multiply
    8,341.31x = 11,484.78 × 7,079.74
  4. Step 4: Simplify right side
    8,341.31x = 81,309,198.93
  5. Step 5: Solve for x
    x = 81,309,198.93/8,341.31
  6. Step 6: Final answer
    x = 9,747.77

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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.