Home / 11,340.90-17,011.35-3,549.72

Finding the Fourth Proportional to 11,340.90, 17,011.35 and 3,549.72

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Solution

The fourth proportional to 11,340.90, 17,011.35 and 3,549.72 is: 5,324.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,340.90 : 17,011.35 = 3,549.72 : x
  2. Step 2: Convert to fraction form
    11,340.90/17,011.35 = 3,549.72/x
  3. Step 3: Cross multiply
    11,340.90x = 17,011.35 × 3,549.72
  4. Step 4: Simplify right side
    11,340.90x = 60,385,529.32
  5. Step 5: Solve for x
    x = 60,385,529.32/11,340.90
  6. Step 6: Final answer
    x = 5,324.58

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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.