Home / 19,868.27-27,418.65-10,916.30

Finding the Fourth Proportional to 19,868.27, 27,418.65 and 10,916.30

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Solution

The fourth proportional to 19,868.27, 27,418.65 and 10,916.30 is: 15,064.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,868.27 : 27,418.65 = 10,916.30 : x
  2. Step 2: Convert to fraction form
    19,868.27/27,418.65 = 10,916.30/x
  3. Step 3: Cross multiply
    19,868.27x = 27,418.65 × 10,916.30
  4. Step 4: Simplify right side
    19,868.27x = 299,310,071.90
  5. Step 5: Solve for x
    x = 299,310,071.90/19,868.27
  6. Step 6: Final answer
    x = 15,064.73

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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.