Home / 19,764.70-29,657.27-8,679.17

Finding the Fourth Proportional to 19,764.70, 29,657.27 and 8,679.17

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Solution

The fourth proportional to 19,764.70, 29,657.27 and 8,679.17 is: 13,023.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,764.70 : 29,657.27 = 8,679.17 : x
  2. Step 2: Convert to fraction form
    19,764.70/29,657.27 = 8,679.17/x
  3. Step 3: Cross multiply
    19,764.70x = 29,657.27 × 8,679.17
  4. Step 4: Simplify right side
    19,764.70x = 257,400,488.07
  5. Step 5: Solve for x
    x = 257,400,488.07/19,764.70
  6. Step 6: Final answer
    x = 13,023.24

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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.