Home / 19,916.34-27,498.62-13,215.92

Finding the Fourth Proportional to 19,916.34, 27,498.62 and 13,215.92

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Solution

The fourth proportional to 19,916.34, 27,498.62 and 13,215.92 is: 18,247.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.34 : 27,498.62 = 13,215.92 : x
  2. Step 2: Convert to fraction form
    19,916.34/27,498.62 = 13,215.92/x
  3. Step 3: Cross multiply
    19,916.34x = 27,498.62 × 13,215.92
  4. Step 4: Simplify right side
    19,916.34x = 363,419,562.03
  5. Step 5: Solve for x
    x = 363,419,562.03/19,916.34
  6. Step 6: Final answer
    x = 18,247.31

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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.