Home / 8,248.79-11,387.69-6,356.23

Finding the Fourth Proportional to 8,248.79, 11,387.69 and 6,356.23

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Solution

The fourth proportional to 8,248.79, 11,387.69 and 6,356.23 is: 8,774.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,248.79 : 11,387.69 = 6,356.23 : x
  2. Step 2: Convert to fraction form
    8,248.79/11,387.69 = 6,356.23/x
  3. Step 3: Cross multiply
    8,248.79x = 11,387.69 × 6,356.23
  4. Step 4: Simplify right side
    8,248.79x = 72,382,732.48
  5. Step 5: Solve for x
    x = 72,382,732.48/8,248.79
  6. Step 6: Final answer
    x = 8,774.95

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Half scale
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Find fourth proportional to 8,249.79, 11,389.07 and 6,357.23
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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.