Home / 8,447.30-11,657.03-4,618.79

Finding the Fourth Proportional to 8,447.30, 11,657.03 and 4,618.79

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Solution

The fourth proportional to 8,447.30, 11,657.03 and 4,618.79 is: 6,373.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.30 : 11,657.03 = 4,618.79 : x
  2. Step 2: Convert to fraction form
    8,447.30/11,657.03 = 4,618.79/x
  3. Step 3: Cross multiply
    8,447.30x = 11,657.03 × 4,618.79
  4. Step 4: Simplify right side
    8,447.30x = 53,841,373.59
  5. Step 5: Solve for x
    x = 53,841,373.59/8,447.30
  6. Step 6: Final answer
    x = 6,373.80

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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.