Home / 19,664.28-29,486.40-6,511.90

Finding the Fourth Proportional to 19,664.28, 29,486.40 and 6,511.90

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Solution

The fourth proportional to 19,664.28, 29,486.40 and 6,511.90 is: 9,764.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.28 : 29,486.40 = 6,511.90 : x
  2. Step 2: Convert to fraction form
    19,664.28/29,486.40 = 6,511.90/x
  3. Step 3: Cross multiply
    19,664.28x = 29,486.40 × 6,511.90
  4. Step 4: Simplify right side
    19,664.28x = 192,012,488.16
  5. Step 5: Solve for x
    x = 192,012,488.16/19,664.28
  6. Step 6: Final answer
    x = 9,764.53

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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.