Home / 8,343.80-11,514.70-4,807.72

Finding the Fourth Proportional to 8,343.80, 11,514.70 and 4,807.72

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Solution

The fourth proportional to 8,343.80, 11,514.70 and 4,807.72 is: 6,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,343.80 : 11,514.70 = 4,807.72 : x
  2. Step 2: Convert to fraction form
    8,343.80/11,514.70 = 4,807.72/x
  3. Step 3: Cross multiply
    8,343.80x = 11,514.70 × 4,807.72
  4. Step 4: Simplify right side
    8,343.80x = 55,359,453.48
  5. Step 5: Solve for x
    x = 55,359,453.48/8,343.80
  6. Step 6: Final answer
    x = 6,634.80

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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.