Home / 15,015.40-22,523.10-7,220.20

Finding the Fourth Proportional to 15,015.40, 22,523.10 and 7,220.20

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Solution

The fourth proportional to 15,015.40, 22,523.10 and 7,220.20 is: 10,830.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,015.40 : 22,523.10 = 7,220.20 : x
  2. Step 2: Convert to fraction form
    15,015.40/22,523.10 = 7,220.20/x
  3. Step 3: Cross multiply
    15,015.40x = 22,523.10 × 7,220.20
  4. Step 4: Simplify right side
    15,015.40x = 162,621,286.62
  5. Step 5: Solve for x
    x = 162,621,286.62/15,015.40
  6. Step 6: Final answer
    x = 10,830.30

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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.