Home / 19,916.76-29,875.14-6,778.56

Finding the Fourth Proportional to 19,916.76, 29,875.14 and 6,778.56

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Solution

The fourth proportional to 19,916.76, 29,875.14 and 6,778.56 is: 10,167.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.76 : 29,875.14 = 6,778.56 : x
  2. Step 2: Convert to fraction form
    19,916.76/29,875.14 = 6,778.56/x
  3. Step 3: Cross multiply
    19,916.76x = 29,875.14 × 6,778.56
  4. Step 4: Simplify right side
    19,916.76x = 202,510,429.00
  5. Step 5: Solve for x
    x = 202,510,429.00/19,916.76
  6. Step 6: Final answer
    x = 10,167.84

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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.