Home / 11,904.67-16,429.14-7,189.66

Finding the Fourth Proportional to 11,904.67, 16,429.14 and 7,189.66

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Solution

The fourth proportional to 11,904.67, 16,429.14 and 7,189.66 is: 9,922.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,904.67 : 16,429.14 = 7,189.66 : x
  2. Step 2: Convert to fraction form
    11,904.67/16,429.14 = 7,189.66/x
  3. Step 3: Cross multiply
    11,904.67x = 16,429.14 × 7,189.66
  4. Step 4: Simplify right side
    11,904.67x = 118,119,930.69
  5. Step 5: Solve for x
    x = 118,119,930.69/11,904.67
  6. Step 6: Final answer
    x = 9,922.15

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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.