Home / 15,128.88-22,699.08-5,269.20

Finding the Fourth Proportional to 15,128.88, 22,699.08 and 5,269.20

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Solution

The fourth proportional to 15,128.88, 22,699.08 and 5,269.20 is: 7,905.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128.88 : 22,699.08 = 5,269.20 : x
  2. Step 2: Convert to fraction form
    15,128.88/22,699.08 = 5,269.20/x
  3. Step 3: Cross multiply
    15,128.88x = 22,699.08 × 5,269.20
  4. Step 4: Simplify right side
    15,128.88x = 119,605,992.34
  5. Step 5: Solve for x
    x = 119,605,992.34/15,128.88
  6. Step 6: Final answer
    x = 7,905.81

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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.