Home / 8,782.36-13,180.92-3,521.06

Finding the Fourth Proportional to 8,782.36, 13,180.92 and 3,521.06

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Solution

The fourth proportional to 8,782.36, 13,180.92 and 3,521.06 is: 5,284.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782.36 : 13,180.92 = 3,521.06 : x
  2. Step 2: Convert to fraction form
    8,782.36/13,180.92 = 3,521.06/x
  3. Step 3: Cross multiply
    8,782.36x = 13,180.92 × 3,521.06
  4. Step 4: Simplify right side
    8,782.36x = 46,410,810.18
  5. Step 5: Solve for x
    x = 46,410,810.18/8,782.36
  6. Step 6: Final answer
    x = 5,284.55

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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.