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Finding the Fourth Proportional to 12,862.45, 17,744.54 and 7,554.87

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Solution

The fourth proportional to 12,862.45, 17,744.54 and 7,554.87 is: 10,422.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,862.45 : 17,744.54 = 7,554.87 : x
  2. Step 2: Convert to fraction form
    12,862.45/17,744.54 = 7,554.87/x
  3. Step 3: Cross multiply
    12,862.45x = 17,744.54 × 7,554.87
  4. Step 4: Simplify right side
    12,862.45x = 134,057,718.88
  5. Step 5: Solve for x
    x = 134,057,718.88/12,862.45
  6. Step 6: Final answer
    x = 10,422.41

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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.