Home / 11,015.93-15,202.10-5,980.20

Finding the Fourth Proportional to 11,015.93, 15,202.10 and 5,980.20

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Solution

The fourth proportional to 11,015.93, 15,202.10 and 5,980.20 is: 8,252.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,015.93 : 15,202.10 = 5,980.20 : x
  2. Step 2: Convert to fraction form
    11,015.93/15,202.10 = 5,980.20/x
  3. Step 3: Cross multiply
    11,015.93x = 15,202.10 × 5,980.20
  4. Step 4: Simplify right side
    11,015.93x = 90,911,568.52
  5. Step 5: Solve for x
    x = 90,911,568.52/11,015.93
  6. Step 6: Final answer
    x = 8,252.74

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.