Home / 11,015.34-15,200.76-5,979.45

Finding the Fourth Proportional to 11,015.34, 15,200.76 and 5,979.45

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Solution

The fourth proportional to 11,015.34, 15,200.76 and 5,979.45 is: 8,251.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,015.34 : 15,200.76 = 5,979.45 : x
  2. Step 2: Convert to fraction form
    11,015.34/15,200.76 = 5,979.45/x
  3. Step 3: Cross multiply
    11,015.34x = 15,200.76 × 5,979.45
  4. Step 4: Simplify right side
    11,015.34x = 90,892,184.38
  5. Step 5: Solve for x
    x = 90,892,184.38/11,015.34
  6. Step 6: Final answer
    x = 8,251.42

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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.