Home / 8,347.28-11,519.80-4,810.72

Finding the Fourth Proportional to 8,347.28, 11,519.80 and 4,810.72

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Solution

The fourth proportional to 8,347.28, 11,519.80 and 4,810.72 is: 6,639.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,347.28 : 11,519.80 = 4,810.72 : x
  2. Step 2: Convert to fraction form
    8,347.28/11,519.80 = 4,810.72/x
  3. Step 3: Cross multiply
    8,347.28x = 11,519.80 × 4,810.72
  4. Step 4: Simplify right side
    8,347.28x = 55,418,540.09
  5. Step 5: Solve for x
    x = 55,418,540.09/8,347.28
  6. Step 6: Final answer
    x = 6,639.11

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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.