Home / 8,518.26-11,751.39-4,979.91

Finding the Fourth Proportional to 8,518.26, 11,751.39 and 4,979.91

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Solution

The fourth proportional to 8,518.26, 11,751.39 and 4,979.91 is: 6,870.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.26 : 11,751.39 = 4,979.91 : x
  2. Step 2: Convert to fraction form
    8,518.26/11,751.39 = 4,979.91/x
  3. Step 3: Cross multiply
    8,518.26x = 11,751.39 × 4,979.91
  4. Step 4: Simplify right side
    8,518.26x = 58,520,864.57
  5. Step 5: Solve for x
    x = 58,520,864.57/8,518.26
  6. Step 6: Final answer
    x = 6,870.05

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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.