Home / 12,730.11-19,109.13-10,114.43

Finding the Fourth Proportional to 12,730.11, 19,109.13 and 10,114.43

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Solution

The fourth proportional to 12,730.11, 19,109.13 and 10,114.43 is: 15,182.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,730.11 : 19,109.13 = 10,114.43 : x
  2. Step 2: Convert to fraction form
    12,730.11/19,109.13 = 10,114.43/x
  3. Step 3: Cross multiply
    12,730.11x = 19,109.13 × 10,114.43
  4. Step 4: Simplify right side
    12,730.11x = 193,277,862.20
  5. Step 5: Solve for x
    x = 193,277,862.20/12,730.11
  6. Step 6: Final answer
    x = 15,182.73

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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.