Home / 19,808.88-27,348.68-12,747.57

Finding the Fourth Proportional to 19,808.88, 27,348.68 and 12,747.57

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Solution

The fourth proportional to 19,808.88, 27,348.68 and 12,747.57 is: 17,599.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,808.88 : 27,348.68 = 12,747.57 : x
  2. Step 2: Convert to fraction form
    19,808.88/27,348.68 = 12,747.57/x
  3. Step 3: Cross multiply
    19,808.88x = 27,348.68 × 12,747.57
  4. Step 4: Simplify right side
    19,808.88x = 348,629,212.71
  5. Step 5: Solve for x
    x = 348,629,212.71/19,808.88
  6. Step 6: Final answer
    x = 17,599.64

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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.