Home / 10,140.96-13,992.14-6,161.84

Finding the Fourth Proportional to 10,140.96, 13,992.14 and 6,161.84

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Solution

The fourth proportional to 10,140.96, 13,992.14 and 6,161.84 is: 8,501.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.96 : 13,992.14 = 6,161.84 : x
  2. Step 2: Convert to fraction form
    10,140.96/13,992.14 = 6,161.84/x
  3. Step 3: Cross multiply
    10,140.96x = 13,992.14 × 6,161.84
  4. Step 4: Simplify right side
    10,140.96x = 86,217,227.17
  5. Step 5: Solve for x
    x = 86,217,227.17/10,140.96
  6. Step 6: Final answer
    x = 8,501.88

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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.