Home / 8,917.98-12,292.11-6,331.80

Finding the Fourth Proportional to 8,917.98, 12,292.11 and 6,331.80

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Solution

The fourth proportional to 8,917.98, 12,292.11 and 6,331.80 is: 8,727.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.98 : 12,292.11 = 6,331.80 : x
  2. Step 2: Convert to fraction form
    8,917.98/12,292.11 = 6,331.80/x
  3. Step 3: Cross multiply
    8,917.98x = 12,292.11 × 6,331.80
  4. Step 4: Simplify right side
    8,917.98x = 77,831,182.10
  5. Step 5: Solve for x
    x = 77,831,182.10/8,917.98
  6. Step 6: Final answer
    x = 8,727.45

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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.