Home / 12,827.46-17,709.26-9,778.65

Finding the Fourth Proportional to 12,827.46, 17,709.26 and 9,778.65

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Solution

The fourth proportional to 12,827.46, 17,709.26 and 9,778.65 is: 13,500.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,827.46 : 17,709.26 = 9,778.65 : x
  2. Step 2: Convert to fraction form
    12,827.46/17,709.26 = 9,778.65/x
  3. Step 3: Cross multiply
    12,827.46x = 17,709.26 × 9,778.65
  4. Step 4: Simplify right side
    12,827.46x = 173,172,655.30
  5. Step 5: Solve for x
    x = 173,172,655.30/12,827.46
  6. Step 6: Final answer
    x = 13,500.15

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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.