Home / 10,560.76-15,861.66-7,776.44

Finding the Fourth Proportional to 10,560.76, 15,861.66 and 7,776.44

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Solution

The fourth proportional to 10,560.76, 15,861.66 and 7,776.44 is: 11,679.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,560.76 : 15,861.66 = 7,776.44 : x
  2. Step 2: Convert to fraction form
    10,560.76/15,861.66 = 7,776.44/x
  3. Step 3: Cross multiply
    10,560.76x = 15,861.66 × 7,776.44
  4. Step 4: Simplify right side
    10,560.76x = 123,347,247.29
  5. Step 5: Solve for x
    x = 123,347,247.29/10,560.76
  6. Step 6: Final answer
    x = 11,679.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.