Home / 19,677.06-27,165.38-13,636.08

Finding the Fourth Proportional to 19,677.06, 27,165.38 and 13,636.08

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Solution

The fourth proportional to 19,677.06, 27,165.38 and 13,636.08 is: 18,825.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,677.06 : 27,165.38 = 13,636.08 : x
  2. Step 2: Convert to fraction form
    19,677.06/27,165.38 = 13,636.08/x
  3. Step 3: Cross multiply
    19,677.06x = 27,165.38 × 13,636.08
  4. Step 4: Simplify right side
    19,677.06x = 370,429,226.73
  5. Step 5: Solve for x
    x = 370,429,226.73/19,677.06
  6. Step 6: Final answer
    x = 18,825.44

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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.