Home / 8,782.06-13,178.28-3,239.30

Finding the Fourth Proportional to 8,782.06, 13,178.28 and 3,239.30

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Solution

The fourth proportional to 8,782.06, 13,178.28 and 3,239.30 is: 4,860.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782.06 : 13,178.28 = 3,239.30 : x
  2. Step 2: Convert to fraction form
    8,782.06/13,178.28 = 3,239.30/x
  3. Step 3: Cross multiply
    8,782.06x = 13,178.28 × 3,239.30
  4. Step 4: Simplify right side
    8,782.06x = 42,688,336.51
  5. Step 5: Solve for x
    x = 42,688,336.51/8,782.06
  6. Step 6: Final answer
    x = 4,860.86

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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.