Home / 12,981.24-19,471.86-8,367.48

Finding the Fourth Proportional to 12,981.24, 19,471.86 and 8,367.48

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Solution

The fourth proportional to 12,981.24, 19,471.86 and 8,367.48 is: 12,551.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,981.24 : 19,471.86 = 8,367.48 : x
  2. Step 2: Convert to fraction form
    12,981.24/19,471.86 = 8,367.48/x
  3. Step 3: Cross multiply
    12,981.24x = 19,471.86 × 8,367.48
  4. Step 4: Simplify right side
    12,981.24x = 162,930,399.11
  5. Step 5: Solve for x
    x = 162,930,399.11/12,981.24
  6. Step 6: Final answer
    x = 12,551.22

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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.