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Finding the Fourth Proportional to 12,858.33, 17,746.81 and 7,553.44

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Solution

The fourth proportional to 12,858.33, 17,746.81 and 7,553.44 is: 10,425.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.33 : 17,746.81 = 7,553.44 : x
  2. Step 2: Convert to fraction form
    12,858.33/17,746.81 = 7,553.44/x
  3. Step 3: Cross multiply
    12,858.33x = 17,746.81 × 7,553.44
  4. Step 4: Simplify right side
    12,858.33x = 134,049,510.31
  5. Step 5: Solve for x
    x = 134,049,510.31/12,858.33
  6. Step 6: Final answer
    x = 10,425.11

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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.