Home / 13,317.31-18,377.94-7,349.15

Finding the Fourth Proportional to 13,317.31, 18,377.94 and 7,349.15

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Solution

The fourth proportional to 13,317.31, 18,377.94 and 7,349.15 is: 10,141.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.31 : 18,377.94 = 7,349.15 : x
  2. Step 2: Convert to fraction form
    13,317.31/18,377.94 = 7,349.15/x
  3. Step 3: Cross multiply
    13,317.31x = 18,377.94 × 7,349.15
  4. Step 4: Simplify right side
    13,317.31x = 135,062,237.75
  5. Step 5: Solve for x
    x = 135,062,237.75/13,317.31
  6. Step 6: Final answer
    x = 10,141.86

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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.