Home / 8,578.08-12,868.80-3,313.04

Finding the Fourth Proportional to 8,578.08, 12,868.80 and 3,313.04

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Solution

The fourth proportional to 8,578.08, 12,868.80 and 3,313.04 is: 4,970.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578.08 : 12,868.80 = 3,313.04 : x
  2. Step 2: Convert to fraction form
    8,578.08/12,868.80 = 3,313.04/x
  3. Step 3: Cross multiply
    8,578.08x = 12,868.80 × 3,313.04
  4. Step 4: Simplify right side
    8,578.08x = 42,634,849.15
  5. Step 5: Solve for x
    x = 42,634,849.15/8,578.08
  6. Step 6: Final answer
    x = 4,970.21

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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.