Home / 19,868.83-27,419.49-10,916.55

Finding the Fourth Proportional to 19,868.83, 27,419.49 and 10,916.55

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Solution

The fourth proportional to 19,868.83, 27,419.49 and 10,916.55 is: 15,065.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,868.83 : 27,419.49 = 10,916.55 : x
  2. Step 2: Convert to fraction form
    19,868.83/27,419.49 = 10,916.55/x
  3. Step 3: Cross multiply
    19,868.83x = 27,419.49 × 10,916.55
  4. Step 4: Simplify right side
    19,868.83x = 299,326,233.56
  5. Step 5: Solve for x
    x = 299,326,233.56/19,868.83
  6. Step 6: Final answer
    x = 15,065.12

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1.5x scale

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.