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Finding the Fourth Proportional to 8,347.01, 12,515.04 and 3,411.68

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Solution

The fourth proportional to 8,347.01, 12,515.04 and 3,411.68 is: 5,115.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,347.01 : 12,515.04 = 3,411.68 : x
  2. Step 2: Convert to fraction form
    8,347.01/12,515.04 = 3,411.68/x
  3. Step 3: Cross multiply
    8,347.01x = 12,515.04 × 3,411.68
  4. Step 4: Simplify right side
    8,347.01x = 42,697,249.09
  5. Step 5: Solve for x
    x = 42,697,249.09/8,347.01
  6. Step 6: Final answer
    x = 5,115.28

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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.