Home / 8,531.19-12,794.36-5,406.48

Finding the Fourth Proportional to 8,531.19, 12,794.36 and 5,406.48

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Solution

The fourth proportional to 8,531.19, 12,794.36 and 5,406.48 is: 8,108.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.19 : 12,794.36 = 5,406.48 : x
  2. Step 2: Convert to fraction form
    8,531.19/12,794.36 = 5,406.48/x
  3. Step 3: Cross multiply
    8,531.19x = 12,794.36 × 5,406.48
  4. Step 4: Simplify right side
    8,531.19x = 69,172,424.42
  5. Step 5: Solve for x
    x = 69,172,424.42/8,531.19
  6. Step 6: Final answer
    x = 8,108.18

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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.