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Finding the Fourth Proportional to 8,223.58, 11,347.69 and 4,865.74

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Solution

The fourth proportional to 8,223.58, 11,347.69 and 4,865.74 is: 6,714.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,223.58 : 11,347.69 = 4,865.74 : x
  2. Step 2: Convert to fraction form
    8,223.58/11,347.69 = 4,865.74/x
  3. Step 3: Cross multiply
    8,223.58x = 11,347.69 × 4,865.74
  4. Step 4: Simplify right side
    8,223.58x = 55,214,868.61
  5. Step 5: Solve for x
    x = 55,214,868.61/8,223.58
  6. Step 6: Final answer
    x = 6,714.22

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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.