Home / 12,404.49-17,117.90-6,739.11

Finding the Fourth Proportional to 12,404.49, 17,117.90 and 6,739.11

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Solution

The fourth proportional to 12,404.49, 17,117.90 and 6,739.11 is: 9,299.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,404.49 : 17,117.90 = 6,739.11 : x
  2. Step 2: Convert to fraction form
    12,404.49/17,117.90 = 6,739.11/x
  3. Step 3: Cross multiply
    12,404.49x = 17,117.90 × 6,739.11
  4. Step 4: Simplify right side
    12,404.49x = 115,359,411.07
  5. Step 5: Solve for x
    x = 115,359,411.07/12,404.49
  6. Step 6: Final answer
    x = 9,299.81

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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.