Home / 9,989.46-13,781.26-7,007.24

Finding the Fourth Proportional to 9,989.46, 13,781.26 and 7,007.24

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Solution

The fourth proportional to 9,989.46, 13,781.26 and 7,007.24 is: 9,667.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989.46 : 13,781.26 = 7,007.24 : x
  2. Step 2: Convert to fraction form
    9,989.46/13,781.26 = 7,007.24/x
  3. Step 3: Cross multiply
    9,989.46x = 13,781.26 × 7,007.24
  4. Step 4: Simplify right side
    9,989.46x = 96,568,600.12
  5. Step 5: Solve for x
    x = 96,568,600.12/9,989.46
  6. Step 6: Final answer
    x = 9,667.05

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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.