Home / 10,543.14-15,809.40-3,520.68

Finding the Fourth Proportional to 10,543.14, 15,809.40 and 3,520.68

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Solution

The fourth proportional to 10,543.14, 15,809.40 and 3,520.68 is: 5,279.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,543.14 : 15,809.40 = 3,520.68 : x
  2. Step 2: Convert to fraction form
    10,543.14/15,809.40 = 3,520.68/x
  3. Step 3: Cross multiply
    10,543.14x = 15,809.40 × 3,520.68
  4. Step 4: Simplify right side
    10,543.14x = 55,659,838.39
  5. Step 5: Solve for x
    x = 55,659,838.39/10,543.14
  6. Step 6: Final answer
    x = 5,279.25

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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.