Home / 8,620.08-12,931.80-3,073.84

Finding the Fourth Proportional to 8,620.08, 12,931.80 and 3,073.84

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Solution

The fourth proportional to 8,620.08, 12,931.80 and 3,073.84 is: 4,611.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620.08 : 12,931.80 = 3,073.84 : x
  2. Step 2: Convert to fraction form
    8,620.08/12,931.80 = 3,073.84/x
  3. Step 3: Cross multiply
    8,620.08x = 12,931.80 × 3,073.84
  4. Step 4: Simplify right side
    8,620.08x = 39,750,284.11
  5. Step 5: Solve for x
    x = 39,750,284.11/8,620.08
  6. Step 6: Final answer
    x = 4,611.36

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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.