Home / 11,720.76-16,168.59-6,937.98

Finding the Fourth Proportional to 11,720.76, 16,168.59 and 6,937.98

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Solution

The fourth proportional to 11,720.76, 16,168.59 and 6,937.98 is: 9,570.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.76 : 16,168.59 = 6,937.98 : x
  2. Step 2: Convert to fraction form
    11,720.76/16,168.59 = 6,937.98/x
  3. Step 3: Cross multiply
    11,720.76x = 16,168.59 × 6,937.98
  4. Step 4: Simplify right side
    11,720.76x = 112,177,354.05
  5. Step 5: Solve for x
    x = 112,177,354.05/11,720.76
  6. Step 6: Final answer
    x = 9,570.83

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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.