Home / 19,644.36-27,111.90-13,358.76

Finding the Fourth Proportional to 19,644.36, 27,111.90 and 13,358.76

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Solution

The fourth proportional to 19,644.36, 27,111.90 and 13,358.76 is: 18,436.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,644.36 : 27,111.90 = 13,358.76 : x
  2. Step 2: Convert to fraction form
    19,644.36/27,111.90 = 13,358.76/x
  3. Step 3: Cross multiply
    19,644.36x = 27,111.90 × 13,358.76
  4. Step 4: Simplify right side
    19,644.36x = 362,181,365.24
  5. Step 5: Solve for x
    x = 362,181,365.24/19,644.36
  6. Step 6: Final answer
    x = 18,436.91

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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.