Home / 13,317.74-18,379.04-7,349.27

Finding the Fourth Proportional to 13,317.74, 18,379.04 and 7,349.27

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Solution

The fourth proportional to 13,317.74, 18,379.04 and 7,349.27 is: 10,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.74 : 18,379.04 = 7,349.27 : x
  2. Step 2: Convert to fraction form
    13,317.74/18,379.04 = 7,349.27/x
  3. Step 3: Cross multiply
    13,317.74x = 18,379.04 × 7,349.27
  4. Step 4: Simplify right side
    13,317.74x = 135,072,398.66
  5. Step 5: Solve for x
    x = 135,072,398.66/13,317.74
  6. Step 6: Final answer
    x = 10,142.30

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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.