Home / 8,077.84-12,105.40-6,427.04

Finding the Fourth Proportional to 8,077.84, 12,105.40 and 6,427.04

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Solution

The fourth proportional to 8,077.84, 12,105.40 and 6,427.04 is: 9,631.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.84 : 12,105.40 = 6,427.04 : x
  2. Step 2: Convert to fraction form
    8,077.84/12,105.40 = 6,427.04/x
  3. Step 3: Cross multiply
    8,077.84x = 12,105.40 × 6,427.04
  4. Step 4: Simplify right side
    8,077.84x = 77,801,890.02
  5. Step 5: Solve for x
    x = 77,801,890.02/8,077.84
  6. Step 6: Final answer
    x = 9,631.52

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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.