Home / 19,869.36-27,418.38-10,917.24

Finding the Fourth Proportional to 19,869.36, 27,418.38 and 10,917.24

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Solution

The fourth proportional to 19,869.36, 27,418.38 and 10,917.24 is: 15,065.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.36 : 27,418.38 = 10,917.24 : x
  2. Step 2: Convert to fraction form
    19,869.36/27,418.38 = 10,917.24/x
  3. Step 3: Cross multiply
    19,869.36x = 27,418.38 × 10,917.24
  4. Step 4: Simplify right side
    19,869.36x = 299,333,034.87
  5. Step 5: Solve for x
    x = 299,333,034.87/19,869.36
  6. Step 6: Final answer
    x = 15,065.06

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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.