Home / 15,145.03-20,902.22-9,572.23

Finding the Fourth Proportional to 15,145.03, 20,902.22 and 9,572.23

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Solution

The fourth proportional to 15,145.03, 20,902.22 and 9,572.23 is: 13,210.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.03 : 20,902.22 = 9,572.23 : x
  2. Step 2: Convert to fraction form
    15,145.03/20,902.22 = 9,572.23/x
  3. Step 3: Cross multiply
    15,145.03x = 20,902.22 × 9,572.23
  4. Step 4: Simplify right side
    15,145.03x = 200,080,857.35
  5. Step 5: Solve for x
    x = 200,080,857.35/15,145.03
  6. Step 6: Final answer
    x = 13,210.99

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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.