Home / 14,466.40-19,963.92-8,178.72

Finding the Fourth Proportional to 14,466.40, 19,963.92 and 8,178.72

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Solution

The fourth proportional to 14,466.40, 19,963.92 and 8,178.72 is: 11,286.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,466.40 : 19,963.92 = 8,178.72 : x
  2. Step 2: Convert to fraction form
    14,466.40/19,963.92 = 8,178.72/x
  3. Step 3: Cross multiply
    14,466.40x = 19,963.92 × 8,178.72
  4. Step 4: Simplify right side
    14,466.40x = 163,279,311.78
  5. Step 5: Solve for x
    x = 163,279,311.78/14,466.40
  6. Step 6: Final answer
    x = 11,286.80

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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.