Home / 19,869.03-27,419.29-10,916.39

Finding the Fourth Proportional to 19,869.03, 27,419.29 and 10,916.39

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Solution

The fourth proportional to 19,869.03, 27,419.29 and 10,916.39 is: 15,064.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.03 : 27,419.29 = 10,916.39 : x
  2. Step 2: Convert to fraction form
    19,869.03/27,419.29 = 10,916.39/x
  3. Step 3: Cross multiply
    19,869.03x = 27,419.29 × 10,916.39
  4. Step 4: Simplify right side
    19,869.03x = 299,319,704.42
  5. Step 5: Solve for x
    x = 299,319,704.42/19,869.03
  6. Step 6: Final answer
    x = 15,064.64

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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.