Home / 12,178.74-16,818.02-8,963.85

Finding the Fourth Proportional to 12,178.74, 16,818.02 and 8,963.85

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Solution

The fourth proportional to 12,178.74, 16,818.02 and 8,963.85 is: 12,378.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178.74 : 16,818.02 = 8,963.85 : x
  2. Step 2: Convert to fraction form
    12,178.74/16,818.02 = 8,963.85/x
  3. Step 3: Cross multiply
    12,178.74x = 16,818.02 × 8,963.85
  4. Step 4: Simplify right side
    12,178.74x = 150,754,197.37
  5. Step 5: Solve for x
    x = 150,754,197.37/12,178.74
  6. Step 6: Final answer
    x = 12,378.47

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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.