Home / 11,390.41-15,713.62-6,672.70

Finding the Fourth Proportional to 11,390.41, 15,713.62 and 6,672.70

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Solution

The fourth proportional to 11,390.41, 15,713.62 and 6,672.70 is: 9,205.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.41 : 15,713.62 = 6,672.70 : x
  2. Step 2: Convert to fraction form
    11,390.41/15,713.62 = 6,672.70/x
  3. Step 3: Cross multiply
    11,390.41x = 15,713.62 × 6,672.70
  4. Step 4: Simplify right side
    11,390.41x = 104,852,272.17
  5. Step 5: Solve for x
    x = 104,852,272.17/11,390.41
  6. Step 6: Final answer
    x = 9,205.31

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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.