Home / 8,125.80-12,188.70-4,845.30

Finding the Fourth Proportional to 8,125.80, 12,188.70 and 4,845.30

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Solution

The fourth proportional to 8,125.80, 12,188.70 and 4,845.30 is: 7,267.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.80 : 12,188.70 = 4,845.30 : x
  2. Step 2: Convert to fraction form
    8,125.80/12,188.70 = 4,845.30/x
  3. Step 3: Cross multiply
    8,125.80x = 12,188.70 × 4,845.30
  4. Step 4: Simplify right side
    8,125.80x = 59,057,908.11
  5. Step 5: Solve for x
    x = 59,057,908.11/8,125.80
  6. Step 6: Final answer
    x = 7,267.95

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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.