Home / 15,128.70-22,687.65-5,268.30

Finding the Fourth Proportional to 15,128.70, 22,687.65 and 5,268.30

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Solution

The fourth proportional to 15,128.70, 22,687.65 and 5,268.30 is: 7,900.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128.70 : 22,687.65 = 5,268.30 : x
  2. Step 2: Convert to fraction form
    15,128.70/22,687.65 = 5,268.30/x
  3. Step 3: Cross multiply
    15,128.70x = 22,687.65 × 5,268.30
  4. Step 4: Simplify right side
    15,128.70x = 119,525,346.50
  5. Step 5: Solve for x
    x = 119,525,346.50/15,128.70
  6. Step 6: Final answer
    x = 7,900.57

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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.