Home / 10,072.42-13,892.97-6,291.46

Finding the Fourth Proportional to 10,072.42, 13,892.97 and 6,291.46

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Solution

The fourth proportional to 10,072.42, 13,892.97 and 6,291.46 is: 8,677.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,072.42 : 13,892.97 = 6,291.46 : x
  2. Step 2: Convert to fraction form
    10,072.42/13,892.97 = 6,291.46/x
  3. Step 3: Cross multiply
    10,072.42x = 13,892.97 × 6,291.46
  4. Step 4: Simplify right side
    10,072.42x = 87,407,065.04
  5. Step 5: Solve for x
    x = 87,407,065.04/10,072.42
  6. Step 6: Final answer
    x = 8,677.86

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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.