Home / 13,414.04-18,512.21-7,445.81

Finding the Fourth Proportional to 13,414.04, 18,512.21 and 7,445.81

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Solution

The fourth proportional to 13,414.04, 18,512.21 and 7,445.81 is: 10,275.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.04 : 18,512.21 = 7,445.81 : x
  2. Step 2: Convert to fraction form
    13,414.04/18,512.21 = 7,445.81/x
  3. Step 3: Cross multiply
    13,414.04x = 18,512.21 × 7,445.81
  4. Step 4: Simplify right side
    13,414.04x = 137,838,359.10
  5. Step 5: Solve for x
    x = 137,838,359.10/13,414.04
  6. Step 6: Final answer
    x = 10,275.68

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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.