Home / 19,869.13-27,419.42-10,916.65

Finding the Fourth Proportional to 19,869.13, 27,419.42 and 10,916.65

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Solution

The fourth proportional to 19,869.13, 27,419.42 and 10,916.65 is: 15,064.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.13 : 27,419.42 = 10,916.65 : x
  2. Step 2: Convert to fraction form
    19,869.13/27,419.42 = 10,916.65/x
  3. Step 3: Cross multiply
    19,869.13x = 27,419.42 × 10,916.65
  4. Step 4: Simplify right side
    19,869.13x = 299,328,019.66
  5. Step 5: Solve for x
    x = 299,328,019.66/19,869.13
  6. Step 6: Final answer
    x = 15,064.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.