Home / 10,998.08-16,487.85-7,478.22

Finding the Fourth Proportional to 10,998.08, 16,487.85 and 7,478.22

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Solution

The fourth proportional to 10,998.08, 16,487.85 and 7,478.22 is: 11,211.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.08 : 16,487.85 = 7,478.22 : x
  2. Step 2: Convert to fraction form
    10,998.08/16,487.85 = 7,478.22/x
  3. Step 3: Cross multiply
    10,998.08x = 16,487.85 × 7,478.22
  4. Step 4: Simplify right side
    10,998.08x = 123,299,732.24
  5. Step 5: Solve for x
    x = 123,299,732.24/10,998.08
  6. Step 6: Final answer
    x = 11,211.03

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1.5x scale

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.