Home / 10,002.68-15,013.43-5,075.85

Finding the Fourth Proportional to 10,002.68, 15,013.43 and 5,075.85

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Solution

The fourth proportional to 10,002.68, 15,013.43 and 5,075.85 is: 7,618.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,002.68 : 15,013.43 = 5,075.85 : x
  2. Step 2: Convert to fraction form
    10,002.68/15,013.43 = 5,075.85/x
  3. Step 3: Cross multiply
    10,002.68x = 15,013.43 × 5,075.85
  4. Step 4: Simplify right side
    10,002.68x = 76,205,918.67
  5. Step 5: Solve for x
    x = 76,205,918.67/10,002.68
  6. Step 6: Final answer
    x = 7,618.55

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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.