Home / 13,339.32-18,414.12-7,963.60

Finding the Fourth Proportional to 13,339.32, 18,414.12 and 7,963.60

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Solution

The fourth proportional to 13,339.32, 18,414.12 and 7,963.60 is: 10,993.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.32 : 18,414.12 = 7,963.60 : x
  2. Step 2: Convert to fraction form
    13,339.32/18,414.12 = 7,963.60/x
  3. Step 3: Cross multiply
    13,339.32x = 18,414.12 × 7,963.60
  4. Step 4: Simplify right side
    13,339.32x = 146,642,686.03
  5. Step 5: Solve for x
    x = 146,642,686.03/13,339.32
  6. Step 6: Final answer
    x = 10,993.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.