Home / 8,722.04-13,081.77-2,878.70

Finding the Fourth Proportional to 8,722.04, 13,081.77 and 2,878.70

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Solution

The fourth proportional to 8,722.04, 13,081.77 and 2,878.70 is: 4,317.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.04 : 13,081.77 = 2,878.70 : x
  2. Step 2: Convert to fraction form
    8,722.04/13,081.77 = 2,878.70/x
  3. Step 3: Cross multiply
    8,722.04x = 13,081.77 × 2,878.70
  4. Step 4: Simplify right side
    8,722.04x = 37,658,425.89
  5. Step 5: Solve for x
    x = 37,658,425.89/8,722.04
  6. Step 6: Final answer
    x = 4,317.62

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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.