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Finding the Fourth Proportional to 8,813.48, 12,163.02 and 5,037.20

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Solution

The fourth proportional to 8,813.48, 12,163.02 and 5,037.20 is: 6,951.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.48 : 12,163.02 = 5,037.20 : x
  2. Step 2: Convert to fraction form
    8,813.48/12,163.02 = 5,037.20/x
  3. Step 3: Cross multiply
    8,813.48x = 12,163.02 × 5,037.20
  4. Step 4: Simplify right side
    8,813.48x = 61,267,564.34
  5. Step 5: Solve for x
    x = 61,267,564.34/8,813.48
  6. Step 6: Final answer
    x = 6,951.57

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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.