Home / 10,040.20-15,055.98-3,115.24

Finding the Fourth Proportional to 10,040.20, 15,055.98 and 3,115.24

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Solution

The fourth proportional to 10,040.20, 15,055.98 and 3,115.24 is: 4,671.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,040.20 : 15,055.98 = 3,115.24 : x
  2. Step 2: Convert to fraction form
    10,040.20/15,055.98 = 3,115.24/x
  3. Step 3: Cross multiply
    10,040.20x = 15,055.98 × 3,115.24
  4. Step 4: Simplify right side
    10,040.20x = 46,902,991.14
  5. Step 5: Solve for x
    x = 46,902,991.14/10,040.20
  6. Step 6: Final answer
    x = 4,671.52

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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.