Home / 9,145.98-13,717.56-2,905.17

Finding the Fourth Proportional to 9,145.98, 13,717.56 and 2,905.17

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Solution

The fourth proportional to 9,145.98, 13,717.56 and 2,905.17 is: 4,357.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.98 : 13,717.56 = 2,905.17 : x
  2. Step 2: Convert to fraction form
    9,145.98/13,717.56 = 2,905.17/x
  3. Step 3: Cross multiply
    9,145.98x = 13,717.56 × 2,905.17
  4. Step 4: Simplify right side
    9,145.98x = 39,851,843.79
  5. Step 5: Solve for x
    x = 39,851,843.79/9,145.98
  6. Step 6: Final answer
    x = 4,357.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.