Home / 10,861.70-14,983.92-6,385.23

Finding the Fourth Proportional to 10,861.70, 14,983.92 and 6,385.23

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Solution

The fourth proportional to 10,861.70, 14,983.92 and 6,385.23 is: 8,808.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.70 : 14,983.92 = 6,385.23 : x
  2. Step 2: Convert to fraction form
    10,861.70/14,983.92 = 6,385.23/x
  3. Step 3: Cross multiply
    10,861.70x = 14,983.92 × 6,385.23
  4. Step 4: Simplify right side
    10,861.70x = 95,675,775.50
  5. Step 5: Solve for x
    x = 95,675,775.50/10,861.70
  6. Step 6: Final answer
    x = 8,808.55

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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.