Home / 11,390.67-15,712.79-6,674.04

Finding the Fourth Proportional to 11,390.67, 15,712.79 and 6,674.04

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Solution

The fourth proportional to 11,390.67, 15,712.79 and 6,674.04 is: 9,206.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.67 : 15,712.79 = 6,674.04 : x
  2. Step 2: Convert to fraction form
    11,390.67/15,712.79 = 6,674.04/x
  3. Step 3: Cross multiply
    11,390.67x = 15,712.79 × 6,674.04
  4. Step 4: Simplify right side
    11,390.67x = 104,867,755.60
  5. Step 5: Solve for x
    x = 104,867,755.60/11,390.67
  6. Step 6: Final answer
    x = 9,206.46

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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.