Home / 8,248.71-11,391.80-6,340.35

Finding the Fourth Proportional to 8,248.71, 11,391.80 and 6,340.35

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Solution

The fourth proportional to 8,248.71, 11,391.80 and 6,340.35 is: 8,756.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,248.71 : 11,391.80 = 6,340.35 : x
  2. Step 2: Convert to fraction form
    8,248.71/11,391.80 = 6,340.35/x
  3. Step 3: Cross multiply
    8,248.71x = 11,391.80 × 6,340.35
  4. Step 4: Simplify right side
    8,248.71x = 72,227,967.43
  5. Step 5: Solve for x
    x = 72,227,967.43/8,248.71
  6. Step 6: Final answer
    x = 8,756.27

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Half scale
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Double scale
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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.