Home / 13,568.12-18,714.66-9,543.48

Finding the Fourth Proportional to 13,568.12, 18,714.66 and 9,543.48

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Solution

The fourth proportional to 13,568.12, 18,714.66 and 9,543.48 is: 13,163.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.12 : 18,714.66 = 9,543.48 : x
  2. Step 2: Convert to fraction form
    13,568.12/18,714.66 = 9,543.48/x
  3. Step 3: Cross multiply
    13,568.12x = 18,714.66 × 9,543.48
  4. Step 4: Simplify right side
    13,568.12x = 178,603,022.46
  5. Step 5: Solve for x
    x = 178,603,022.46/13,568.12
  6. Step 6: Final answer
    x = 13,163.43

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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.