Home / 13,750.24-18,975.38-8,445.04

Finding the Fourth Proportional to 13,750.24, 18,975.38 and 8,445.04

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Solution

The fourth proportional to 13,750.24, 18,975.38 and 8,445.04 is: 11,654.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.24 : 18,975.38 = 8,445.04 : x
  2. Step 2: Convert to fraction form
    13,750.24/18,975.38 = 8,445.04/x
  3. Step 3: Cross multiply
    13,750.24x = 18,975.38 × 8,445.04
  4. Step 4: Simplify right side
    13,750.24x = 160,247,843.12
  5. Step 5: Solve for x
    x = 160,247,843.12/13,750.24
  6. Step 6: Final answer
    x = 11,654.19

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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.