Home / 10,786.88-14,885.68-6,071.12

Finding the Fourth Proportional to 10,786.88, 14,885.68 and 6,071.12

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Solution

The fourth proportional to 10,786.88, 14,885.68 and 6,071.12 is: 8,378.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,786.88 : 14,885.68 = 6,071.12 : x
  2. Step 2: Convert to fraction form
    10,786.88/14,885.68 = 6,071.12/x
  3. Step 3: Cross multiply
    10,786.88x = 14,885.68 × 6,071.12
  4. Step 4: Simplify right side
    10,786.88x = 90,372,749.56
  5. Step 5: Solve for x
    x = 90,372,749.56/10,786.88
  6. Step 6: Final answer
    x = 8,378.02

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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.