Home / 10,072.90-13,902.59-6,436.62

Finding the Fourth Proportional to 10,072.90, 13,902.59 and 6,436.62

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Solution

The fourth proportional to 10,072.90, 13,902.59 and 6,436.62 is: 8,883.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,072.90 : 13,902.59 = 6,436.62 : x
  2. Step 2: Convert to fraction form
    10,072.90/13,902.59 = 6,436.62/x
  3. Step 3: Cross multiply
    10,072.90x = 13,902.59 × 6,436.62
  4. Step 4: Simplify right side
    10,072.90x = 89,485,688.85
  5. Step 5: Solve for x
    x = 89,485,688.85/10,072.90
  6. Step 6: Final answer
    x = 8,883.81

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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.