Home / 10,279.45-15,421.12-3,261.23

Finding the Fourth Proportional to 10,279.45, 15,421.12 and 3,261.23

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Solution

The fourth proportional to 10,279.45, 15,421.12 and 3,261.23 is: 4,892.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.45 : 15,421.12 = 3,261.23 : x
  2. Step 2: Convert to fraction form
    10,279.45/15,421.12 = 3,261.23/x
  3. Step 3: Cross multiply
    10,279.45x = 15,421.12 × 3,261.23
  4. Step 4: Simplify right side
    10,279.45x = 50,291,819.18
  5. Step 5: Solve for x
    x = 50,291,819.18/10,279.45
  6. Step 6: Final answer
    x = 4,892.46

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Double scale
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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.