Home / 10,279.11-15,415.62-5,346.07

Finding the Fourth Proportional to 10,279.11, 15,415.62 and 5,346.07

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Solution

The fourth proportional to 10,279.11, 15,415.62 and 5,346.07 is: 8,017.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.11 : 15,415.62 = 5,346.07 : x
  2. Step 2: Convert to fraction form
    10,279.11/15,415.62 = 5,346.07/x
  3. Step 3: Cross multiply
    10,279.11x = 15,415.62 × 5,346.07
  4. Step 4: Simplify right side
    10,279.11x = 82,412,983.61
  5. Step 5: Solve for x
    x = 82,412,983.61/10,279.11
  6. Step 6: Final answer
    x = 8,017.52

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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.