Home / 10,666.68-14,720.22-6,190.80

Finding the Fourth Proportional to 10,666.68, 14,720.22 and 6,190.80

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Solution

The fourth proportional to 10,666.68, 14,720.22 and 6,190.80 is: 8,543.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,666.68 : 14,720.22 = 6,190.80 : x
  2. Step 2: Convert to fraction form
    10,666.68/14,720.22 = 6,190.80/x
  3. Step 3: Cross multiply
    10,666.68x = 14,720.22 × 6,190.80
  4. Step 4: Simplify right side
    10,666.68x = 91,129,937.98
  5. Step 5: Solve for x
    x = 91,129,937.98/10,666.68
  6. Step 6: Final answer
    x = 8,543.42

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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.