Home / 10,479.93-15,730.23-7,698.79

Finding the Fourth Proportional to 10,479.93, 15,730.23 and 7,698.79

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Solution

The fourth proportional to 10,479.93, 15,730.23 and 7,698.79 is: 11,555.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.93 : 15,730.23 = 7,698.79 : x
  2. Step 2: Convert to fraction form
    10,479.93/15,730.23 = 7,698.79/x
  3. Step 3: Cross multiply
    10,479.93x = 15,730.23 × 7,698.79
  4. Step 4: Simplify right side
    10,479.93x = 121,103,737.42
  5. Step 5: Solve for x
    x = 121,103,737.42/10,479.93
  6. Step 6: Final answer
    x = 11,555.78

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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.