Home / 8,376.95-12,561.78-4,214.36

Finding the Fourth Proportional to 8,376.95, 12,561.78 and 4,214.36

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Solution

The fourth proportional to 8,376.95, 12,561.78 and 4,214.36 is: 6,319.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,376.95 : 12,561.78 = 4,214.36 : x
  2. Step 2: Convert to fraction form
    8,376.95/12,561.78 = 4,214.36/x
  3. Step 3: Cross multiply
    8,376.95x = 12,561.78 × 4,214.36
  4. Step 4: Simplify right side
    8,376.95x = 52,939,863.16
  5. Step 5: Solve for x
    x = 52,939,863.16/8,376.95
  6. Step 6: Final answer
    x = 6,319.71

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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.