Home / 15,266.40-22,899-5,405.28

Finding the Fourth Proportional to 15,266.40, 22,899 and 5,405.28

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Solution

The fourth proportional to 15,266.40, 22,899 and 5,405.28 is: 8,107.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,266.40 : 22,899 = 5,405.28 : x
  2. Step 2: Convert to fraction form
    15,266.40/22,899 = 5,405.28/x
  3. Step 3: Cross multiply
    15,266.40x = 22,899 × 5,405.28
  4. Step 4: Simplify right side
    15,266.40x = 123,775,506.72
  5. Step 5: Solve for x
    x = 123,775,506.72/15,266.40
  6. Step 6: Final answer
    x = 8,107.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.