Home / 13,728.98-18,961.56-9,244.95

Finding the Fourth Proportional to 13,728.98, 18,961.56 and 9,244.95

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Solution

The fourth proportional to 13,728.98, 18,961.56 and 9,244.95 is: 12,768.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728.98 : 18,961.56 = 9,244.95 : x
  2. Step 2: Convert to fraction form
    13,728.98/18,961.56 = 9,244.95/x
  3. Step 3: Cross multiply
    13,728.98x = 18,961.56 × 9,244.95
  4. Step 4: Simplify right side
    13,728.98x = 175,298,674.12
  5. Step 5: Solve for x
    x = 175,298,674.12/13,728.98
  6. Step 6: Final answer
    x = 12,768.52

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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.