Home / 10,659.09-15,988.92-6,279.69

Finding the Fourth Proportional to 10,659.09, 15,988.92 and 6,279.69

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Solution

The fourth proportional to 10,659.09, 15,988.92 and 6,279.69 is: 9,419.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,659.09 : 15,988.92 = 6,279.69 : x
  2. Step 2: Convert to fraction form
    10,659.09/15,988.92 = 6,279.69/x
  3. Step 3: Cross multiply
    10,659.09x = 15,988.92 × 6,279.69
  4. Step 4: Simplify right side
    10,659.09x = 100,405,461.03
  5. Step 5: Solve for x
    x = 100,405,461.03/10,659.09
  6. Step 6: Final answer
    x = 9,419.70

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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.