Home / 13,599.42-20,382.93-5,275.05

Finding the Fourth Proportional to 13,599.42, 20,382.93 and 5,275.05

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Solution

The fourth proportional to 13,599.42, 20,382.93 and 5,275.05 is: 7,906.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.42 : 20,382.93 = 5,275.05 : x
  2. Step 2: Convert to fraction form
    13,599.42/20,382.93 = 5,275.05/x
  3. Step 3: Cross multiply
    13,599.42x = 20,382.93 × 5,275.05
  4. Step 4: Simplify right side
    13,599.42x = 107,520,974.90
  5. Step 5: Solve for x
    x = 107,520,974.90/13,599.42
  6. Step 6: Final answer
    x = 7,906.29

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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.