Home / 10,453.70-15,662.28-8,709.91

Finding the Fourth Proportional to 10,453.70, 15,662.28 and 8,709.91

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Solution

The fourth proportional to 10,453.70, 15,662.28 and 8,709.91 is: 13,049.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,453.70 : 15,662.28 = 8,709.91 : x
  2. Step 2: Convert to fraction form
    10,453.70/15,662.28 = 8,709.91/x
  3. Step 3: Cross multiply
    10,453.70x = 15,662.28 × 8,709.91
  4. Step 4: Simplify right side
    10,453.70x = 136,416,970.88
  5. Step 5: Solve for x
    x = 136,416,970.88/10,453.70
  6. Step 6: Final answer
    x = 13,049.64

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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.