Home / 13,344.45-18,414.84-7,680.08

Finding the Fourth Proportional to 13,344.45, 18,414.84 and 7,680.08

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Solution

The fourth proportional to 13,344.45, 18,414.84 and 7,680.08 is: 10,598.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.45 : 18,414.84 = 7,680.08 : x
  2. Step 2: Convert to fraction form
    13,344.45/18,414.84 = 7,680.08/x
  3. Step 3: Cross multiply
    13,344.45x = 18,414.84 × 7,680.08
  4. Step 4: Simplify right side
    13,344.45x = 141,427,519.22
  5. Step 5: Solve for x
    x = 141,427,519.22/13,344.45
  6. Step 6: Final answer
    x = 10,598.23

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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.