Home / 12,412.46-17,129.25-6,747.21

Finding the Fourth Proportional to 12,412.46, 17,129.25 and 6,747.21

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Solution

The fourth proportional to 12,412.46, 17,129.25 and 6,747.21 is: 9,311.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,412.46 : 17,129.25 = 6,747.21 : x
  2. Step 2: Convert to fraction form
    12,412.46/17,129.25 = 6,747.21/x
  3. Step 3: Cross multiply
    12,412.46x = 17,129.25 × 6,747.21
  4. Step 4: Simplify right side
    12,412.46x = 115,574,586.31
  5. Step 5: Solve for x
    x = 115,574,586.31/12,412.46
  6. Step 6: Final answer
    x = 9,311.18

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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.