Home / 8,752.48-13,128.04-2,178.65

Finding the Fourth Proportional to 8,752.48, 13,128.04 and 2,178.65

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Solution

The fourth proportional to 8,752.48, 13,128.04 and 2,178.65 is: 3,267.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.48 : 13,128.04 = 2,178.65 : x
  2. Step 2: Convert to fraction form
    8,752.48/13,128.04 = 2,178.65/x
  3. Step 3: Cross multiply
    8,752.48x = 13,128.04 × 2,178.65
  4. Step 4: Simplify right side
    8,752.48x = 28,601,404.35
  5. Step 5: Solve for x
    x = 28,601,404.35/8,752.48
  6. Step 6: Final answer
    x = 3,267.81

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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.