Home / 11,141.67-15,376.90-6,427.47

Finding the Fourth Proportional to 11,141.67, 15,376.90 and 6,427.47

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Solution

The fourth proportional to 11,141.67, 15,376.90 and 6,427.47 is: 8,870.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,141.67 : 15,376.90 = 6,427.47 : x
  2. Step 2: Convert to fraction form
    11,141.67/15,376.90 = 6,427.47/x
  3. Step 3: Cross multiply
    11,141.67x = 15,376.90 × 6,427.47
  4. Step 4: Simplify right side
    11,141.67x = 98,834,563.44
  5. Step 5: Solve for x
    x = 98,834,563.44/11,141.67
  6. Step 6: Final answer
    x = 8,870.71

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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.