Home / 11,715.74-17,531.89-9,390.68

Finding the Fourth Proportional to 11,715.74, 17,531.89 and 9,390.68

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Solution

The fourth proportional to 11,715.74, 17,531.89 and 9,390.68 is: 14,052.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,715.74 : 17,531.89 = 9,390.68 : x
  2. Step 2: Convert to fraction form
    11,715.74/17,531.89 = 9,390.68/x
  3. Step 3: Cross multiply
    11,715.74x = 17,531.89 × 9,390.68
  4. Step 4: Simplify right side
    11,715.74x = 164,636,257.65
  5. Step 5: Solve for x
    x = 164,636,257.65/11,715.74
  6. Step 6: Final answer
    x = 14,052.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.