Home / 10,147.50-14,003.55-6,167.88

Finding the Fourth Proportional to 10,147.50, 14,003.55 and 6,167.88

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Solution

The fourth proportional to 10,147.50, 14,003.55 and 6,167.88 is: 8,511.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,147.50 : 14,003.55 = 6,167.88 : x
  2. Step 2: Convert to fraction form
    10,147.50/14,003.55 = 6,167.88/x
  3. Step 3: Cross multiply
    10,147.50x = 14,003.55 × 6,167.88
  4. Step 4: Simplify right side
    10,147.50x = 86,372,215.97
  5. Step 5: Solve for x
    x = 86,372,215.97/10,147.50
  6. Step 6: Final answer
    x = 8,511.67

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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.