Home / 12,178.45-16,806.19-6,800.58

Finding the Fourth Proportional to 12,178.45, 16,806.19 and 6,800.58

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Solution

The fourth proportional to 12,178.45, 16,806.19 and 6,800.58 is: 9,384.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178.45 : 16,806.19 = 6,800.58 : x
  2. Step 2: Convert to fraction form
    12,178.45/16,806.19 = 6,800.58/x
  3. Step 3: Cross multiply
    12,178.45x = 16,806.19 × 6,800.58
  4. Step 4: Simplify right side
    12,178.45x = 114,291,839.59
  5. Step 5: Solve for x
    x = 114,291,839.59/12,178.45
  6. Step 6: Final answer
    x = 9,384.76

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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.