Home / 13,763.08-18,993.12-7,475.44

Finding the Fourth Proportional to 13,763.08, 18,993.12 and 7,475.44

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Solution

The fourth proportional to 13,763.08, 18,993.12 and 7,475.44 is: 10,316.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.08 : 18,993.12 = 7,475.44 : x
  2. Step 2: Convert to fraction form
    13,763.08/18,993.12 = 7,475.44/x
  3. Step 3: Cross multiply
    13,763.08x = 18,993.12 × 7,475.44
  4. Step 4: Simplify right side
    13,763.08x = 141,981,928.97
  5. Step 5: Solve for x
    x = 141,981,928.97/13,763.08
  6. Step 6: Final answer
    x = 10,316.15

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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.