Home / 10,479.66-15,729.80-7,698.52

Finding the Fourth Proportional to 10,479.66, 15,729.80 and 7,698.52

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Solution

The fourth proportional to 10,479.66, 15,729.80 and 7,698.52 is: 11,555.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.66 : 15,729.80 = 7,698.52 : x
  2. Step 2: Convert to fraction form
    10,479.66/15,729.80 = 7,698.52/x
  3. Step 3: Cross multiply
    10,479.66x = 15,729.80 × 7,698.52
  4. Step 4: Simplify right side
    10,479.66x = 121,096,179.90
  5. Step 5: Solve for x
    x = 121,096,179.90/10,479.66
  6. Step 6: Final answer
    x = 11,555.35

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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.