Home / 12,857.52-19,285.80-9,093.84

Finding the Fourth Proportional to 12,857.52, 19,285.80 and 9,093.84

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Solution

The fourth proportional to 12,857.52, 19,285.80 and 9,093.84 is: 13,640.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,857.52 : 19,285.80 = 9,093.84 : x
  2. Step 2: Convert to fraction form
    12,857.52/19,285.80 = 9,093.84/x
  3. Step 3: Cross multiply
    12,857.52x = 19,285.80 × 9,093.84
  4. Step 4: Simplify right side
    12,857.52x = 175,381,979.47
  5. Step 5: Solve for x
    x = 175,381,979.47/12,857.52
  6. Step 6: Final answer
    x = 13,640.42

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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.