Home / 13,317.98-18,378.77-7,350.30

Finding the Fourth Proportional to 13,317.98, 18,378.77 and 7,350.30

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Solution

The fourth proportional to 13,317.98, 18,378.77 and 7,350.30 is: 10,143.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.98 : 18,378.77 = 7,350.30 : x
  2. Step 2: Convert to fraction form
    13,317.98/18,378.77 = 7,350.30/x
  3. Step 3: Cross multiply
    13,317.98x = 18,378.77 × 7,350.30
  4. Step 4: Simplify right side
    13,317.98x = 135,089,436.38
  5. Step 5: Solve for x
    x = 135,089,436.38/13,317.98
  6. Step 6: Final answer
    x = 10,143.39

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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.