Home / 8,444.89-11,646.07-6,680.71

Finding the Fourth Proportional to 8,444.89, 11,646.07 and 6,680.71

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Solution

The fourth proportional to 8,444.89, 11,646.07 and 6,680.71 is: 9,213.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,444.89 : 11,646.07 = 6,680.71 : x
  2. Step 2: Convert to fraction form
    8,444.89/11,646.07 = 6,680.71/x
  3. Step 3: Cross multiply
    8,444.89x = 11,646.07 × 6,680.71
  4. Step 4: Simplify right side
    8,444.89x = 77,804,016.31
  5. Step 5: Solve for x
    x = 77,804,016.31/8,444.89
  6. Step 6: Final answer
    x = 9,213.15

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Half scale
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Double scale
Find fourth proportional to 8,445.89, 11,647.45 and 6,681.71
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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.