Home / 8,619.01-12,933.69-3,688.66

Finding the Fourth Proportional to 8,619.01, 12,933.69 and 3,688.66

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Solution

The fourth proportional to 8,619.01, 12,933.69 and 3,688.66 is: 5,535.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.01 : 12,933.69 = 3,688.66 : x
  2. Step 2: Convert to fraction form
    8,619.01/12,933.69 = 3,688.66/x
  3. Step 3: Cross multiply
    8,619.01x = 12,933.69 × 3,688.66
  4. Step 4: Simplify right side
    8,619.01x = 47,707,950.34
  5. Step 5: Solve for x
    x = 47,707,950.34/8,619.01
  6. Step 6: Final answer
    x = 5,535.20

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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.