Home / 14,631.64-20,186.69-8,257.48

Finding the Fourth Proportional to 14,631.64, 20,186.69 and 8,257.48

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Solution

The fourth proportional to 14,631.64, 20,186.69 and 8,257.48 is: 11,392.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,631.64 : 20,186.69 = 8,257.48 : x
  2. Step 2: Convert to fraction form
    14,631.64/20,186.69 = 8,257.48/x
  3. Step 3: Cross multiply
    14,631.64x = 20,186.69 × 8,257.48
  4. Step 4: Simplify right side
    14,631.64x = 166,691,097.19
  5. Step 5: Solve for x
    x = 166,691,097.19/14,631.64
  6. Step 6: Final answer
    x = 11,392.51

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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.