Home / 15,380.34-23,055.39-5,517.78

Finding the Fourth Proportional to 15,380.34, 23,055.39 and 5,517.78

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Solution

The fourth proportional to 15,380.34, 23,055.39 and 5,517.78 is: 8,271.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,380.34 : 23,055.39 = 5,517.78 : x
  2. Step 2: Convert to fraction form
    15,380.34/23,055.39 = 5,517.78/x
  3. Step 3: Cross multiply
    15,380.34x = 23,055.39 × 5,517.78
  4. Step 4: Simplify right side
    15,380.34x = 127,214,569.83
  5. Step 5: Solve for x
    x = 127,214,569.83/15,380.34
  6. Step 6: Final answer
    x = 8,271.25

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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.