Home / 19,664.61-29,501.96-6,520.65

Finding the Fourth Proportional to 19,664.61, 29,501.96 and 6,520.65

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Solution

The fourth proportional to 19,664.61, 29,501.96 and 6,520.65 is: 9,782.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.61 : 29,501.96 = 6,520.65 : x
  2. Step 2: Convert to fraction form
    19,664.61/29,501.96 = 6,520.65/x
  3. Step 3: Cross multiply
    19,664.61x = 29,501.96 × 6,520.65
  4. Step 4: Simplify right side
    19,664.61x = 192,371,922.87
  5. Step 5: Solve for x
    x = 192,371,922.87/19,664.61
  6. Step 6: Final answer
    x = 9,782.65

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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.