Home / 15,129.88-22,700.58-5,270.20

Finding the Fourth Proportional to 15,129.88, 22,700.58 and 5,270.20

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Solution

The fourth proportional to 15,129.88, 22,700.58 and 5,270.20 is: 7,907.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,129.88 : 22,700.58 = 5,270.20 : x
  2. Step 2: Convert to fraction form
    15,129.88/22,700.58 = 5,270.20/x
  3. Step 3: Cross multiply
    15,129.88x = 22,700.58 × 5,270.20
  4. Step 4: Simplify right side
    15,129.88x = 119,636,596.72
  5. Step 5: Solve for x
    x = 119,636,596.72/15,129.88
  6. Step 6: Final answer
    x = 7,907.31

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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.