Home / 9,489.13-13,097.78-5,512.03

Finding the Fourth Proportional to 9,489.13, 13,097.78 and 5,512.03

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Solution

The fourth proportional to 9,489.13, 13,097.78 and 5,512.03 is: 7,608.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,489.13 : 13,097.78 = 5,512.03 : x
  2. Step 2: Convert to fraction form
    9,489.13/13,097.78 = 5,512.03/x
  3. Step 3: Cross multiply
    9,489.13x = 13,097.78 × 5,512.03
  4. Step 4: Simplify right side
    9,489.13x = 72,195,356.29
  5. Step 5: Solve for x
    x = 72,195,356.29/9,489.13
  6. Step 6: Final answer
    x = 7,608.22

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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.