Home / 9,912.33-13,678.38-5,435.19

Finding the Fourth Proportional to 9,912.33, 13,678.38 and 5,435.19

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Solution

The fourth proportional to 9,912.33, 13,678.38 and 5,435.19 is: 7,500.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912.33 : 13,678.38 = 5,435.19 : x
  2. Step 2: Convert to fraction form
    9,912.33/13,678.38 = 5,435.19/x
  3. Step 3: Cross multiply
    9,912.33x = 13,678.38 × 5,435.19
  4. Step 4: Simplify right side
    9,912.33x = 74,344,594.19
  5. Step 5: Solve for x
    x = 74,344,594.19/9,912.33
  6. Step 6: Final answer
    x = 7,500.21

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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.