Home / 8,521.24-12,780.18-4,363.48

Finding the Fourth Proportional to 8,521.24, 12,780.18 and 4,363.48

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Solution

The fourth proportional to 8,521.24, 12,780.18 and 4,363.48 is: 6,544.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.24 : 12,780.18 = 4,363.48 : x
  2. Step 2: Convert to fraction form
    8,521.24/12,780.18 = 4,363.48/x
  3. Step 3: Cross multiply
    8,521.24x = 12,780.18 × 4,363.48
  4. Step 4: Simplify right side
    8,521.24x = 55,766,059.83
  5. Step 5: Solve for x
    x = 55,766,059.83/8,521.24
  6. Step 6: Final answer
    x = 6,544.36

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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.