Home / 11,715.21-17,560.52-7,272.87

Finding the Fourth Proportional to 11,715.21, 17,560.52 and 7,272.87

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Solution

The fourth proportional to 11,715.21, 17,560.52 and 7,272.87 is: 10,901.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,715.21 : 17,560.52 = 7,272.87 : x
  2. Step 2: Convert to fraction form
    11,715.21/17,560.52 = 7,272.87/x
  3. Step 3: Cross multiply
    11,715.21x = 17,560.52 × 7,272.87
  4. Step 4: Simplify right side
    11,715.21x = 127,715,342.73
  5. Step 5: Solve for x
    x = 127,715,342.73/11,715.21
  6. Step 6: Final answer
    x = 10,901.67

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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.