Home / 19,863.60-27,403.08-12,307.92

Finding the Fourth Proportional to 19,863.60, 27,403.08 and 12,307.92

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Solution

The fourth proportional to 19,863.60, 27,403.08 and 12,307.92 is: 16,979.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,863.60 : 27,403.08 = 12,307.92 : x
  2. Step 2: Convert to fraction form
    19,863.60/27,403.08 = 12,307.92/x
  3. Step 3: Cross multiply
    19,863.60x = 27,403.08 × 12,307.92
  4. Step 4: Simplify right side
    19,863.60x = 337,274,916.39
  5. Step 5: Solve for x
    x = 337,274,916.39/19,863.60
  6. Step 6: Final answer
    x = 16,979.55

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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.