Home / 13,861.28-20,754.66-10,558.64

Finding the Fourth Proportional to 13,861.28, 20,754.66 and 10,558.64

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Solution

The fourth proportional to 13,861.28, 20,754.66 and 10,558.64 is: 15,809.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,861.28 : 20,754.66 = 10,558.64 : x
  2. Step 2: Convert to fraction form
    13,861.28/20,754.66 = 10,558.64/x
  3. Step 3: Cross multiply
    13,861.28x = 20,754.66 × 10,558.64
  4. Step 4: Simplify right side
    13,861.28x = 219,140,983.26
  5. Step 5: Solve for x
    x = 219,140,983.26/13,861.28
  6. Step 6: Final answer
    x = 15,809.58

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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.