Home / 10,075.62-15,115.08-3,148.50

Finding the Fourth Proportional to 10,075.62, 15,115.08 and 3,148.50

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Solution

The fourth proportional to 10,075.62, 15,115.08 and 3,148.50 is: 4,723.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,075.62 : 15,115.08 = 3,148.50 : x
  2. Step 2: Convert to fraction form
    10,075.62/15,115.08 = 3,148.50/x
  3. Step 3: Cross multiply
    10,075.62x = 15,115.08 × 3,148.50
  4. Step 4: Simplify right side
    10,075.62x = 47,589,829.38
  5. Step 5: Solve for x
    x = 47,589,829.38/10,075.62
  6. Step 6: Final answer
    x = 4,723.27

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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.