Home / 9,899.14-13,660.23-5,422

Finding the Fourth Proportional to 9,899.14, 13,660.23 and 5,422

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Solution

The fourth proportional to 9,899.14, 13,660.23 and 5,422 is: 7,482.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,899.14 : 13,660.23 = 5,422 : x
  2. Step 2: Convert to fraction form
    9,899.14/13,660.23 = 5,422/x
  3. Step 3: Cross multiply
    9,899.14x = 13,660.23 × 5,422
  4. Step 4: Simplify right side
    9,899.14x = 74,065,767.06
  5. Step 5: Solve for x
    x = 74,065,767.06/9,899.14
  6. Step 6: Final answer
    x = 7,482.04

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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.