Home / 12,590.28-18,872.46-6,745.32

Finding the Fourth Proportional to 12,590.28, 18,872.46 and 6,745.32

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Solution

The fourth proportional to 12,590.28, 18,872.46 and 6,745.32 is: 10,111.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.28 : 18,872.46 = 6,745.32 : x
  2. Step 2: Convert to fraction form
    12,590.28/18,872.46 = 6,745.32/x
  3. Step 3: Cross multiply
    12,590.28x = 18,872.46 × 6,745.32
  4. Step 4: Simplify right side
    12,590.28x = 127,300,781.89
  5. Step 5: Solve for x
    x = 127,300,781.89/12,590.28
  6. Step 6: Final answer
    x = 10,111.04

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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.