Home / 19,877.14-27,428.83-11,377.32

Finding the Fourth Proportional to 19,877.14, 27,428.83 and 11,377.32

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Solution

The fourth proportional to 19,877.14, 27,428.83 and 11,377.32 is: 15,699.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,877.14 : 27,428.83 = 11,377.32 : x
  2. Step 2: Convert to fraction form
    19,877.14/27,428.83 = 11,377.32/x
  3. Step 3: Cross multiply
    19,877.14x = 27,428.83 × 11,377.32
  4. Step 4: Simplify right side
    19,877.14x = 312,066,663.12
  5. Step 5: Solve for x
    x = 312,066,663.12/19,877.14
  6. Step 6: Final answer
    x = 15,699.78

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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.