Home / 8,752.07-13,128.11-2,178.26

Finding the Fourth Proportional to 8,752.07, 13,128.11 and 2,178.26

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Solution

The fourth proportional to 8,752.07, 13,128.11 and 2,178.26 is: 3,267.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.07 : 13,128.11 = 2,178.26 : x
  2. Step 2: Convert to fraction form
    8,752.07/13,128.11 = 2,178.26/x
  3. Step 3: Cross multiply
    8,752.07x = 13,128.11 × 2,178.26
  4. Step 4: Simplify right side
    8,752.07x = 28,596,425.92
  5. Step 5: Solve for x
    x = 28,596,425.92/8,752.07
  6. Step 6: Final answer
    x = 3,267.39

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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.