Home / 8,281.63-11,428.67-4,555.63

Finding the Fourth Proportional to 8,281.63, 11,428.67 and 4,555.63

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Solution

The fourth proportional to 8,281.63, 11,428.67 and 4,555.63 is: 6,286.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,281.63 : 11,428.67 = 4,555.63 : x
  2. Step 2: Convert to fraction form
    8,281.63/11,428.67 = 4,555.63/x
  3. Step 3: Cross multiply
    8,281.63x = 11,428.67 × 4,555.63
  4. Step 4: Simplify right side
    8,281.63x = 52,064,791.91
  5. Step 5: Solve for x
    x = 52,064,791.91/8,281.63
  6. Step 6: Final answer
    x = 6,286.78

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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.