Home / 8,125.41-12,178.15-4,618.36

Finding the Fourth Proportional to 8,125.41, 12,178.15 and 4,618.36

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Solution

The fourth proportional to 8,125.41, 12,178.15 and 4,618.36 is: 6,921.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.41 : 12,178.15 = 4,618.36 : x
  2. Step 2: Convert to fraction form
    8,125.41/12,178.15 = 4,618.36/x
  3. Step 3: Cross multiply
    8,125.41x = 12,178.15 × 4,618.36
  4. Step 4: Simplify right side
    8,125.41x = 56,243,087.66
  5. Step 5: Solve for x
    x = 56,243,087.66/8,125.41
  6. Step 6: Final answer
    x = 6,921.87

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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.