Home / 11,190.69-16,785.13-6,507.70

Finding the Fourth Proportional to 11,190.69, 16,785.13 and 6,507.70

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Solution

The fourth proportional to 11,190.69, 16,785.13 and 6,507.70 is: 9,761.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.69 : 16,785.13 = 6,507.70 : x
  2. Step 2: Convert to fraction form
    11,190.69/16,785.13 = 6,507.70/x
  3. Step 3: Cross multiply
    11,190.69x = 16,785.13 × 6,507.70
  4. Step 4: Simplify right side
    11,190.69x = 109,232,590.50
  5. Step 5: Solve for x
    x = 109,232,590.50/11,190.69
  6. Step 6: Final answer
    x = 9,761.02

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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.