Home / 13,414.23-18,511.50-7,445.75

Finding the Fourth Proportional to 13,414.23, 18,511.50 and 7,445.75

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Solution

The fourth proportional to 13,414.23, 18,511.50 and 7,445.75 is: 10,275.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.23 : 18,511.50 = 7,445.75 : x
  2. Step 2: Convert to fraction form
    13,414.23/18,511.50 = 7,445.75/x
  3. Step 3: Cross multiply
    13,414.23x = 18,511.50 × 7,445.75
  4. Step 4: Simplify right side
    13,414.23x = 137,831,908.57
  5. Step 5: Solve for x
    x = 137,831,908.57/13,414.23
  6. Step 6: Final answer
    x = 10,275.05

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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.