Home / 8,449.49-11,659.28-4,672.15

Finding the Fourth Proportional to 8,449.49, 11,659.28 and 4,672.15

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Solution

The fourth proportional to 8,449.49, 11,659.28 and 4,672.15 is: 6,447.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,449.49 : 11,659.28 = 4,672.15 : x
  2. Step 2: Convert to fraction form
    8,449.49/11,659.28 = 4,672.15/x
  3. Step 3: Cross multiply
    8,449.49x = 11,659.28 × 4,672.15
  4. Step 4: Simplify right side
    8,449.49x = 54,473,823.39
  5. Step 5: Solve for x
    x = 54,473,823.39/8,449.49
  6. Step 6: Final answer
    x = 6,447.00

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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.