Home / 8,813.50-12,163.11-5,088.70

Finding the Fourth Proportional to 8,813.50, 12,163.11 and 5,088.70

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Solution

The fourth proportional to 8,813.50, 12,163.11 and 5,088.70 is: 7,022.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.50 : 12,163.11 = 5,088.70 : x
  2. Step 2: Convert to fraction form
    8,813.50/12,163.11 = 5,088.70/x
  3. Step 3: Cross multiply
    8,813.50x = 12,163.11 × 5,088.70
  4. Step 4: Simplify right side
    8,813.50x = 61,894,417.86
  5. Step 5: Solve for x
    x = 61,894,417.86/8,813.50
  6. Step 6: Final answer
    x = 7,022.68

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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.