Home / 19,869.27-27,418.80-10,916.34

Finding the Fourth Proportional to 19,869.27, 27,418.80 and 10,916.34

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Solution

The fourth proportional to 19,869.27, 27,418.80 and 10,916.34 is: 15,064.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.27 : 27,418.80 = 10,916.34 : x
  2. Step 2: Convert to fraction form
    19,869.27/27,418.80 = 10,916.34/x
  3. Step 3: Cross multiply
    19,869.27x = 27,418.80 × 10,916.34
  4. Step 4: Simplify right side
    19,869.27x = 299,312,943.19
  5. Step 5: Solve for x
    x = 299,312,943.19/19,869.27
  6. Step 6: Final answer
    x = 15,064.11

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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.