Home / 10,075.92-15,120.60-3,841.68

Finding the Fourth Proportional to 10,075.92, 15,120.60 and 3,841.68

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Solution

The fourth proportional to 10,075.92, 15,120.60 and 3,841.68 is: 5,765.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,075.92 : 15,120.60 = 3,841.68 : x
  2. Step 2: Convert to fraction form
    10,075.92/15,120.60 = 3,841.68/x
  3. Step 3: Cross multiply
    10,075.92x = 15,120.60 × 3,841.68
  4. Step 4: Simplify right side
    10,075.92x = 58,088,506.61
  5. Step 5: Solve for x
    x = 58,088,506.61/10,075.92
  6. Step 6: Final answer
    x = 5,765.08

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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.