Home / 11,199.24-15,456.46-6,421.08

Finding the Fourth Proportional to 11,199.24, 15,456.46 and 6,421.08

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Solution

The fourth proportional to 11,199.24, 15,456.46 and 6,421.08 is: 8,861.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,199.24 : 15,456.46 = 6,421.08 : x
  2. Step 2: Convert to fraction form
    11,199.24/15,456.46 = 6,421.08/x
  3. Step 3: Cross multiply
    11,199.24x = 15,456.46 × 6,421.08
  4. Step 4: Simplify right side
    11,199.24x = 99,247,166.18
  5. Step 5: Solve for x
    x = 99,247,166.18/11,199.24
  6. Step 6: Final answer
    x = 8,861.96

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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.