Home / 10,055.57-15,083.75-3,392.78

Finding the Fourth Proportional to 10,055.57, 15,083.75 and 3,392.78

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Solution

The fourth proportional to 10,055.57, 15,083.75 and 3,392.78 is: 5,089.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,055.57 : 15,083.75 = 3,392.78 : x
  2. Step 2: Convert to fraction form
    10,055.57/15,083.75 = 3,392.78/x
  3. Step 3: Cross multiply
    10,055.57x = 15,083.75 × 3,392.78
  4. Step 4: Simplify right side
    10,055.57x = 51,175,778.39
  5. Step 5: Solve for x
    x = 51,175,778.39/10,055.57
  6. Step 6: Final answer
    x = 5,089.30

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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.