Home / 8,752.51-13,121.39-4,070.12

Finding the Fourth Proportional to 8,752.51, 13,121.39 and 4,070.12

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Solution

The fourth proportional to 8,752.51, 13,121.39 and 4,070.12 is: 6,101.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.51 : 13,121.39 = 4,070.12 : x
  2. Step 2: Convert to fraction form
    8,752.51/13,121.39 = 4,070.12/x
  3. Step 3: Cross multiply
    8,752.51x = 13,121.39 × 4,070.12
  4. Step 4: Simplify right side
    8,752.51x = 53,405,687.15
  5. Step 5: Solve for x
    x = 53,405,687.15/8,752.51
  6. Step 6: Final answer
    x = 6,101.76

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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.