Home / 14,789.75-20,383.13-12,258.53

Finding the Fourth Proportional to 14,789.75, 20,383.13 and 12,258.53

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Solution

The fourth proportional to 14,789.75, 20,383.13 and 12,258.53 is: 16,894.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,789.75 : 20,383.13 = 12,258.53 : x
  2. Step 2: Convert to fraction form
    14,789.75/20,383.13 = 12,258.53/x
  3. Step 3: Cross multiply
    14,789.75x = 20,383.13 × 12,258.53
  4. Step 4: Simplify right side
    14,789.75x = 249,867,149.31
  5. Step 5: Solve for x
    x = 249,867,149.31/14,789.75
  6. Step 6: Final answer
    x = 16,894.62

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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.