Home / 18,147.52-25,044.78-11,075.14

Finding the Fourth Proportional to 18,147.52, 25,044.78 and 11,075.14

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Solution

The fourth proportional to 18,147.52, 25,044.78 and 11,075.14 is: 15,284.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.52 : 25,044.78 = 11,075.14 : x
  2. Step 2: Convert to fraction form
    18,147.52/25,044.78 = 11,075.14/x
  3. Step 3: Cross multiply
    18,147.52x = 25,044.78 × 11,075.14
  4. Step 4: Simplify right side
    18,147.52x = 277,374,444.77
  5. Step 5: Solve for x
    x = 277,374,444.77/18,147.52
  6. Step 6: Final answer
    x = 15,284.43

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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.