Home / 12,862.24-19,295.78-8,711.80

Finding the Fourth Proportional to 12,862.24, 19,295.78 and 8,711.80

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Solution

The fourth proportional to 12,862.24, 19,295.78 and 8,711.80 is: 13,069.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,862.24 : 19,295.78 = 8,711.80 : x
  2. Step 2: Convert to fraction form
    12,862.24/19,295.78 = 8,711.80/x
  3. Step 3: Cross multiply
    12,862.24x = 19,295.78 × 8,711.80
  4. Step 4: Simplify right side
    12,862.24x = 168,100,976.20
  5. Step 5: Solve for x
    x = 168,100,976.20/12,862.24
  6. Step 6: Final answer
    x = 13,069.34

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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.