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Finding the Fourth Proportional to 8,751.58, 12,079.48 and 4,976.95

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Solution

The fourth proportional to 8,751.58, 12,079.48 and 4,976.95 is: 6,869.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.58 : 12,079.48 = 4,976.95 : x
  2. Step 2: Convert to fraction form
    8,751.58/12,079.48 = 4,976.95/x
  3. Step 3: Cross multiply
    8,751.58x = 12,079.48 × 4,976.95
  4. Step 4: Simplify right side
    8,751.58x = 60,118,943.10
  5. Step 5: Solve for x
    x = 60,118,943.10/8,751.58
  6. Step 6: Final answer
    x = 6,869.50

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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.