Home / 12,894.06-17,794.89-7,228.72

Finding the Fourth Proportional to 12,894.06, 17,794.89 and 7,228.72

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Solution

The fourth proportional to 12,894.06, 17,794.89 and 7,228.72 is: 9,976.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,894.06 : 17,794.89 = 7,228.72 : x
  2. Step 2: Convert to fraction form
    12,894.06/17,794.89 = 7,228.72/x
  3. Step 3: Cross multiply
    12,894.06x = 17,794.89 × 7,228.72
  4. Step 4: Simplify right side
    12,894.06x = 128,634,277.24
  5. Step 5: Solve for x
    x = 128,634,277.24/12,894.06
  6. Step 6: Final answer
    x = 9,976.24

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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.