Home / 10,998.11-16,502.63-8,779.22

Finding the Fourth Proportional to 10,998.11, 16,502.63 and 8,779.22

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Solution

The fourth proportional to 10,998.11, 16,502.63 and 8,779.22 is: 13,173.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.11 : 16,502.63 = 8,779.22 : x
  2. Step 2: Convert to fraction form
    10,998.11/16,502.63 = 8,779.22/x
  3. Step 3: Cross multiply
    10,998.11x = 16,502.63 × 8,779.22
  4. Step 4: Simplify right side
    10,998.11x = 144,880,092.94
  5. Step 5: Solve for x
    x = 144,880,092.94/10,998.11
  6. Step 6: Final answer
    x = 13,173.19

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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.