Home / 8,470.50-11,690.75-4,884.81

Finding the Fourth Proportional to 8,470.50, 11,690.75 and 4,884.81

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Solution

The fourth proportional to 8,470.50, 11,690.75 and 4,884.81 is: 6,741.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,470.50 : 11,690.75 = 4,884.81 : x
  2. Step 2: Convert to fraction form
    8,470.50/11,690.75 = 4,884.81/x
  3. Step 3: Cross multiply
    8,470.50x = 11,690.75 × 4,884.81
  4. Step 4: Simplify right side
    8,470.50x = 57,107,060.88
  5. Step 5: Solve for x
    x = 57,107,060.88/8,470.50
  6. Step 6: Final answer
    x = 6,741.88

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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.