Home / 11,191.09-16,770.79-8,715.01

Finding the Fourth Proportional to 11,191.09, 16,770.79 and 8,715.01

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Solution

The fourth proportional to 11,191.09, 16,770.79 and 8,715.01 is: 13,060.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.09 : 16,770.79 = 8,715.01 : x
  2. Step 2: Convert to fraction form
    11,191.09/16,770.79 = 8,715.01/x
  3. Step 3: Cross multiply
    11,191.09x = 16,770.79 × 8,715.01
  4. Step 4: Simplify right side
    11,191.09x = 146,157,602.56
  5. Step 5: Solve for x
    x = 146,157,602.56/11,191.09
  6. Step 6: Final answer
    x = 13,060.18

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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.