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Finding the Fourth Proportional to 8,809.98, 13,218.21 and 6,347.58

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Solution

The fourth proportional to 8,809.98, 13,218.21 and 6,347.58 is: 9,523.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.98 : 13,218.21 = 6,347.58 : x
  2. Step 2: Convert to fraction form
    8,809.98/13,218.21 = 6,347.58/x
  3. Step 3: Cross multiply
    8,809.98x = 13,218.21 × 6,347.58
  4. Step 4: Simplify right side
    8,809.98x = 83,903,645.43
  5. Step 5: Solve for x
    x = 83,903,645.43/8,809.98
  6. Step 6: Final answer
    x = 9,523.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.