Home / 10,147.80-15,219.90-2,751.33

Finding the Fourth Proportional to 10,147.80, 15,219.90 and 2,751.33

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Solution

The fourth proportional to 10,147.80, 15,219.90 and 2,751.33 is: 4,126.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,147.80 : 15,219.90 = 2,751.33 : x
  2. Step 2: Convert to fraction form
    10,147.80/15,219.90 = 2,751.33/x
  3. Step 3: Cross multiply
    10,147.80x = 15,219.90 × 2,751.33
  4. Step 4: Simplify right side
    10,147.80x = 41,874,967.47
  5. Step 5: Solve for x
    x = 41,874,967.47/10,147.80
  6. Step 6: Final answer
    x = 4,126.51

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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.