Home / 8,813.99-12,162.43-5,277.11

Finding the Fourth Proportional to 8,813.99, 12,162.43 and 5,277.11

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Solution

The fourth proportional to 8,813.99, 12,162.43 and 5,277.11 is: 7,281.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.99 : 12,162.43 = 5,277.11 : x
  2. Step 2: Convert to fraction form
    8,813.99/12,162.43 = 5,277.11/x
  3. Step 3: Cross multiply
    8,813.99x = 12,162.43 × 5,277.11
  4. Step 4: Simplify right side
    8,813.99x = 64,182,480.98
  5. Step 5: Solve for x
    x = 64,182,480.98/8,813.99
  6. Step 6: Final answer
    x = 7,281.89

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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.