Home / 13,755.60-18,998.19-9,297.72

Finding the Fourth Proportional to 13,755.60, 18,998.19 and 9,297.72

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Solution

The fourth proportional to 13,755.60, 18,998.19 and 9,297.72 is: 12,841.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.60 : 18,998.19 = 9,297.72 : x
  2. Step 2: Convert to fraction form
    13,755.60/18,998.19 = 9,297.72/x
  3. Step 3: Cross multiply
    13,755.60x = 18,998.19 × 9,297.72
  4. Step 4: Simplify right side
    13,755.60x = 176,639,851.13
  5. Step 5: Solve for x
    x = 176,639,851.13/13,755.60
  6. Step 6: Final answer
    x = 12,841.30

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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.