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Finding the Fourth Proportional to 12,858.18, 17,750.10 and 7,553.34

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Solution

The fourth proportional to 12,858.18, 17,750.10 and 7,553.34 is: 10,427.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.18 : 17,750.10 = 7,553.34 : x
  2. Step 2: Convert to fraction form
    12,858.18/17,750.10 = 7,553.34/x
  3. Step 3: Cross multiply
    12,858.18x = 17,750.10 × 7,553.34
  4. Step 4: Simplify right side
    12,858.18x = 134,072,540.33
  5. Step 5: Solve for x
    x = 134,072,540.33/12,858.18
  6. Step 6: Final answer
    x = 10,427.02

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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.