Home / 13,645.13-18,841.14-8,867.43

Finding the Fourth Proportional to 13,645.13, 18,841.14 and 8,867.43

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Solution

The fourth proportional to 13,645.13, 18,841.14 and 8,867.43 is: 12,244.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645.13 : 18,841.14 = 8,867.43 : x
  2. Step 2: Convert to fraction form
    13,645.13/18,841.14 = 8,867.43/x
  3. Step 3: Cross multiply
    13,645.13x = 18,841.14 × 8,867.43
  4. Step 4: Simplify right side
    13,645.13x = 167,072,490.07
  5. Step 5: Solve for x
    x = 167,072,490.07/13,645.13
  6. Step 6: Final answer
    x = 12,244.12

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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.