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Finding the Fourth Proportional to 12,858.48, 17,744.94 and 7,269.48

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Solution

The fourth proportional to 12,858.48, 17,744.94 and 7,269.48 is: 10,032.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.48 : 17,744.94 = 7,269.48 : x
  2. Step 2: Convert to fraction form
    12,858.48/17,744.94 = 7,269.48/x
  3. Step 3: Cross multiply
    12,858.48x = 17,744.94 × 7,269.48
  4. Step 4: Simplify right side
    12,858.48x = 128,996,486.43
  5. Step 5: Solve for x
    x = 128,996,486.43/12,858.48
  6. Step 6: Final answer
    x = 10,032.02

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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.