Home / 8,178.63-11,288.61-6,850.23

Finding the Fourth Proportional to 8,178.63, 11,288.61 and 6,850.23

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Solution

The fourth proportional to 8,178.63, 11,288.61 and 6,850.23 is: 9,455.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.63 : 11,288.61 = 6,850.23 : x
  2. Step 2: Convert to fraction form
    8,178.63/11,288.61 = 6,850.23/x
  3. Step 3: Cross multiply
    8,178.63x = 11,288.61 × 6,850.23
  4. Step 4: Simplify right side
    8,178.63x = 77,329,574.88
  5. Step 5: Solve for x
    x = 77,329,574.88/8,178.63
  6. Step 6: Final answer
    x = 9,455.08

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Find fourth proportional to 8,179.63, 11,289.99 and 6,851.23
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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.