Home / 8,817.86-12,160.82-6,160.70

Finding the Fourth Proportional to 8,817.86, 12,160.82 and 6,160.70

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Solution

The fourth proportional to 8,817.86, 12,160.82 and 6,160.70 is: 8,496.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,817.86 : 12,160.82 = 6,160.70 : x
  2. Step 2: Convert to fraction form
    8,817.86/12,160.82 = 6,160.70/x
  3. Step 3: Cross multiply
    8,817.86x = 12,160.82 × 6,160.70
  4. Step 4: Simplify right side
    8,817.86x = 74,919,072.17
  5. Step 5: Solve for x
    x = 74,919,072.17/8,817.86
  6. Step 6: Final answer
    x = 8,496.29

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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.