Home / 12,948.20-19,436.70-8,023.40

Finding the Fourth Proportional to 12,948.20, 19,436.70 and 8,023.40

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Solution

The fourth proportional to 12,948.20, 19,436.70 and 8,023.40 is: 12,044.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948.20 : 19,436.70 = 8,023.40 : x
  2. Step 2: Convert to fraction form
    12,948.20/19,436.70 = 8,023.40/x
  3. Step 3: Cross multiply
    12,948.20x = 19,436.70 × 8,023.40
  4. Step 4: Simplify right side
    12,948.20x = 155,948,418.78
  5. Step 5: Solve for x
    x = 155,948,418.78/12,948.20
  6. Step 6: Final answer
    x = 12,044.02

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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.