Home / 8,996.49-12,416.76-5,642.20

Finding the Fourth Proportional to 8,996.49, 12,416.76 and 5,642.20

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Solution

The fourth proportional to 8,996.49, 12,416.76 and 5,642.20 is: 7,787.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,996.49 : 12,416.76 = 5,642.20 : x
  2. Step 2: Convert to fraction form
    8,996.49/12,416.76 = 5,642.20/x
  3. Step 3: Cross multiply
    8,996.49x = 12,416.76 × 5,642.20
  4. Step 4: Simplify right side
    8,996.49x = 70,057,843.27
  5. Step 5: Solve for x
    x = 70,057,843.27/8,996.49
  6. Step 6: Final answer
    x = 7,787.24

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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.