Home / 11,348.39-15,659.28-6,311.61

Finding the Fourth Proportional to 11,348.39, 15,659.28 and 6,311.61

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Solution

The fourth proportional to 11,348.39, 15,659.28 and 6,311.61 is: 8,709.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,348.39 : 15,659.28 = 6,311.61 : x
  2. Step 2: Convert to fraction form
    11,348.39/15,659.28 = 6,311.61/x
  3. Step 3: Cross multiply
    11,348.39x = 15,659.28 × 6,311.61
  4. Step 4: Simplify right side
    11,348.39x = 98,835,268.24
  5. Step 5: Solve for x
    x = 98,835,268.24/11,348.39
  6. Step 6: Final answer
    x = 8,709.19

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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.