Home / 15,815.72-23,723.84-4,722.64

Finding the Fourth Proportional to 15,815.72, 23,723.84 and 4,722.64

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Solution

The fourth proportional to 15,815.72, 23,723.84 and 4,722.64 is: 7,084.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,815.72 : 23,723.84 = 4,722.64 : x
  2. Step 2: Convert to fraction form
    15,815.72/23,723.84 = 4,722.64/x
  3. Step 3: Cross multiply
    15,815.72x = 23,723.84 × 4,722.64
  4. Step 4: Simplify right side
    15,815.72x = 112,039,155.74
  5. Step 5: Solve for x
    x = 112,039,155.74/15,815.72
  6. Step 6: Final answer
    x = 7,084.04

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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.