Home / 11,400.08-15,732.12-6,620.96

Finding the Fourth Proportional to 11,400.08, 15,732.12 and 6,620.96

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Solution

The fourth proportional to 11,400.08, 15,732.12 and 6,620.96 is: 9,136.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,400.08 : 15,732.12 = 6,620.96 : x
  2. Step 2: Convert to fraction form
    11,400.08/15,732.12 = 6,620.96/x
  3. Step 3: Cross multiply
    11,400.08x = 15,732.12 × 6,620.96
  4. Step 4: Simplify right side
    11,400.08x = 104,161,737.24
  5. Step 5: Solve for x
    x = 104,161,737.24/11,400.08
  6. Step 6: Final answer
    x = 9,136.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.