Home / 13,865.07-20,768.18-12,873.63

Finding the Fourth Proportional to 13,865.07, 20,768.18 and 12,873.63

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Solution

The fourth proportional to 13,865.07, 20,768.18 and 12,873.63 is: 19,283.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.07 : 20,768.18 = 12,873.63 : x
  2. Step 2: Convert to fraction form
    13,865.07/20,768.18 = 12,873.63/x
  3. Step 3: Cross multiply
    13,865.07x = 20,768.18 × 12,873.63
  4. Step 4: Simplify right side
    13,865.07x = 267,361,800.73
  5. Step 5: Solve for x
    x = 267,361,800.73/13,865.07
  6. Step 6: Final answer
    x = 19,283.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.