Home / 19,638.86-27,133.38-13,697.06

Finding the Fourth Proportional to 19,638.86, 27,133.38 and 13,697.06

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Solution

The fourth proportional to 19,638.86, 27,133.38 and 13,697.06 is: 18,924.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,638.86 : 27,133.38 = 13,697.06 : x
  2. Step 2: Convert to fraction form
    19,638.86/27,133.38 = 13,697.06/x
  3. Step 3: Cross multiply
    19,638.86x = 27,133.38 × 13,697.06
  4. Step 4: Simplify right side
    19,638.86x = 371,647,329.71
  5. Step 5: Solve for x
    x = 371,647,329.71/19,638.86
  6. Step 6: Final answer
    x = 18,924.08

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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.