Home / 12,862.20-19,244.70-8,488.20

Finding the Fourth Proportional to 12,862.20, 19,244.70 and 8,488.20

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Solution

The fourth proportional to 12,862.20, 19,244.70 and 8,488.20 is: 12,700.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,862.20 : 19,244.70 = 8,488.20 : x
  2. Step 2: Convert to fraction form
    12,862.20/19,244.70 = 8,488.20/x
  3. Step 3: Cross multiply
    12,862.20x = 19,244.70 × 8,488.20
  4. Step 4: Simplify right side
    12,862.20x = 163,352,862.54
  5. Step 5: Solve for x
    x = 163,352,862.54/12,862.20
  6. Step 6: Final answer
    x = 12,700.23

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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.