Home / 12,946.80-19,447.84-9,272.64

Finding the Fourth Proportional to 12,946.80, 19,447.84 and 9,272.64

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Solution

The fourth proportional to 12,946.80, 19,447.84 and 9,272.64 is: 13,928.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946.80 : 19,447.84 = 9,272.64 : x
  2. Step 2: Convert to fraction form
    12,946.80/19,447.84 = 9,272.64/x
  3. Step 3: Cross multiply
    12,946.80x = 19,447.84 × 9,272.64
  4. Step 4: Simplify right side
    12,946.80x = 180,332,819.10
  5. Step 5: Solve for x
    x = 180,332,819.10/12,946.80
  6. Step 6: Final answer
    x = 13,928.76

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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.