Home / 15,207.72-22,815.18-4,819.47

Finding the Fourth Proportional to 15,207.72, 22,815.18 and 4,819.47

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Solution

The fourth proportional to 15,207.72, 22,815.18 and 4,819.47 is: 7,230.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,207.72 : 22,815.18 = 4,819.47 : x
  2. Step 2: Convert to fraction form
    15,207.72/22,815.18 = 4,819.47/x
  3. Step 3: Cross multiply
    15,207.72x = 22,815.18 × 4,819.47
  4. Step 4: Simplify right side
    15,207.72x = 109,957,075.55
  5. Step 5: Solve for x
    x = 109,957,075.55/15,207.72
  6. Step 6: Final answer
    x = 7,230.35

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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.