Home / 12,453.50-17,186.19-6,864.86

Finding the Fourth Proportional to 12,453.50, 17,186.19 and 6,864.86

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Solution

The fourth proportional to 12,453.50, 17,186.19 and 6,864.86 is: 9,473.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,453.50 : 17,186.19 = 6,864.86 : x
  2. Step 2: Convert to fraction form
    12,453.50/17,186.19 = 6,864.86/x
  3. Step 3: Cross multiply
    12,453.50x = 17,186.19 × 6,864.86
  4. Step 4: Simplify right side
    12,453.50x = 117,980,788.28
  5. Step 5: Solve for x
    x = 117,980,788.28/12,453.50
  6. Step 6: Final answer
    x = 9,473.71

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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.