Home / 12,512.27-18,763.65-5,112.76

Finding the Fourth Proportional to 12,512.27, 18,763.65 and 5,112.76

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Solution

The fourth proportional to 12,512.27, 18,763.65 and 5,112.76 is: 7,667.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,512.27 : 18,763.65 = 5,112.76 : x
  2. Step 2: Convert to fraction form
    12,512.27/18,763.65 = 5,112.76/x
  3. Step 3: Cross multiply
    12,512.27x = 18,763.65 × 5,112.76
  4. Step 4: Simplify right side
    12,512.27x = 95,934,039.17
  5. Step 5: Solve for x
    x = 95,934,039.17/12,512.27
  6. Step 6: Final answer
    x = 7,667.20

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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.