Home / 19,815.14-27,337.89-11,311.13

Finding the Fourth Proportional to 19,815.14, 27,337.89 and 11,311.13

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Solution

The fourth proportional to 19,815.14, 27,337.89 and 11,311.13 is: 15,605.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.14 : 27,337.89 = 11,311.13 : x
  2. Step 2: Convert to fraction form
    19,815.14/27,337.89 = 11,311.13/x
  3. Step 3: Cross multiply
    19,815.14x = 27,337.89 × 11,311.13
  4. Step 4: Simplify right side
    19,815.14x = 309,222,427.72
  5. Step 5: Solve for x
    x = 309,222,427.72/19,815.14
  6. Step 6: Final answer
    x = 15,605.36

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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.