Home / 6,331.68-8,807.49-6,211.40

Finding the Fourth Proportional to 6,331.68, 8,807.49 and 6,211.40

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Solution

The fourth proportional to 6,331.68, 8,807.49 and 6,211.40 is: 8,640.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,331.68 : 8,807.49 = 6,211.40 : x
  2. Step 2: Convert to fraction form
    6,331.68/8,807.49 = 6,211.40/x
  3. Step 3: Cross multiply
    6,331.68x = 8,807.49 × 6,211.40
  4. Step 4: Simplify right side
    6,331.68x = 54,706,799.35
  5. Step 5: Solve for x
    x = 54,706,799.35/6,331.68
  6. Step 6: Final answer
    x = 8,640.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.