Home / 8,723.20-13,077.36-2,878.24

Finding the Fourth Proportional to 8,723.20, 13,077.36 and 2,878.24

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Solution

The fourth proportional to 8,723.20, 13,077.36 and 2,878.24 is: 4,314.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,723.20 : 13,077.36 = 2,878.24 : x
  2. Step 2: Convert to fraction form
    8,723.20/13,077.36 = 2,878.24/x
  3. Step 3: Cross multiply
    8,723.20x = 13,077.36 × 2,878.24
  4. Step 4: Simplify right side
    8,723.20x = 37,639,780.65
  5. Step 5: Solve for x
    x = 37,639,780.65/8,723.20
  6. Step 6: Final answer
    x = 4,314.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.