Home / 8,813.96-12,162.12-5,276.42

Finding the Fourth Proportional to 8,813.96, 12,162.12 and 5,276.42

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Solution

The fourth proportional to 8,813.96, 12,162.12 and 5,276.42 is: 7,280.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.96 : 12,162.12 = 5,276.42 : x
  2. Step 2: Convert to fraction form
    8,813.96/12,162.12 = 5,276.42/x
  3. Step 3: Cross multiply
    8,813.96x = 12,162.12 × 5,276.42
  4. Step 4: Simplify right side
    8,813.96x = 64,172,453.21
  5. Step 5: Solve for x
    x = 64,172,453.21/8,813.96
  6. Step 6: Final answer
    x = 7,280.77

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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.