Home / 12,512.78-18,752.76-6,963.26

Finding the Fourth Proportional to 12,512.78, 18,752.76 and 6,963.26

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Solution

The fourth proportional to 12,512.78, 18,752.76 and 6,963.26 is: 10,435.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,512.78 : 18,752.76 = 6,963.26 : x
  2. Step 2: Convert to fraction form
    12,512.78/18,752.76 = 6,963.26/x
  3. Step 3: Cross multiply
    12,512.78x = 18,752.76 × 6,963.26
  4. Step 4: Simplify right side
    12,512.78x = 130,580,343.60
  5. Step 5: Solve for x
    x = 130,580,343.60/12,512.78
  6. Step 6: Final answer
    x = 10,435.76

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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.