Home / 15,815.05-23,721.76-4,721.83

Finding the Fourth Proportional to 15,815.05, 23,721.76 and 4,721.83

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Solution

The fourth proportional to 15,815.05, 23,721.76 and 4,721.83 is: 7,082.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,815.05 : 23,721.76 = 4,721.83 : x
  2. Step 2: Convert to fraction form
    15,815.05/23,721.76 = 4,721.83/x
  3. Step 3: Cross multiply
    15,815.05x = 23,721.76 × 4,721.83
  4. Step 4: Simplify right side
    15,815.05x = 112,010,046.91
  5. Step 5: Solve for x
    x = 112,010,046.91/15,815.05
  6. Step 6: Final answer
    x = 7,082.50

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1.5x scale

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.