Home / 11,417.76-17,118-6,220.80

Finding the Fourth Proportional to 11,417.76, 17,118 and 6,220.80

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Solution

The fourth proportional to 11,417.76, 17,118 and 6,220.80 is: 9,326.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,417.76 : 17,118 = 6,220.80 : x
  2. Step 2: Convert to fraction form
    11,417.76/17,118 = 6,220.80/x
  3. Step 3: Cross multiply
    11,417.76x = 17,118 × 6,220.80
  4. Step 4: Simplify right side
    11,417.76x = 106,487,654.40
  5. Step 5: Solve for x
    x = 106,487,654.40/11,417.76
  6. Step 6: Final answer
    x = 9,326.49

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.