Home / 11,120.40-16,680.60-10,901.70

Finding the Fourth Proportional to 11,120.40, 16,680.60 and 10,901.70

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Solution

The fourth proportional to 11,120.40, 16,680.60 and 10,901.70 is: 16,352.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.40 : 16,680.60 = 10,901.70 : x
  2. Step 2: Convert to fraction form
    11,120.40/16,680.60 = 10,901.70/x
  3. Step 3: Cross multiply
    11,120.40x = 16,680.60 × 10,901.70
  4. Step 4: Simplify right side
    11,120.40x = 181,846,897.02
  5. Step 5: Solve for x
    x = 181,846,897.02/11,120.40
  6. Step 6: Final answer
    x = 16,352.55

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Half scale
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Double scale
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Similar ratio
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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.