Home / 8,418.98-11,615.61-4,881.48

Finding the Fourth Proportional to 8,418.98, 11,615.61 and 4,881.48

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Solution

The fourth proportional to 8,418.98, 11,615.61 and 4,881.48 is: 6,734.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.98 : 11,615.61 = 4,881.48 : x
  2. Step 2: Convert to fraction form
    8,418.98/11,615.61 = 4,881.48/x
  3. Step 3: Cross multiply
    8,418.98x = 11,615.61 × 4,881.48
  4. Step 4: Simplify right side
    8,418.98x = 56,701,367.90
  5. Step 5: Solve for x
    x = 56,701,367.90/8,418.98
  6. Step 6: Final answer
    x = 6,734.95

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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.