Home / 14,699.64-20,286.54-8,412.60

Finding the Fourth Proportional to 14,699.64, 20,286.54 and 8,412.60

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Solution

The fourth proportional to 14,699.64, 20,286.54 and 8,412.60 is: 11,609.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,699.64 : 20,286.54 = 8,412.60 : x
  2. Step 2: Convert to fraction form
    14,699.64/20,286.54 = 8,412.60/x
  3. Step 3: Cross multiply
    14,699.64x = 20,286.54 × 8,412.60
  4. Step 4: Simplify right side
    14,699.64x = 170,662,546.40
  5. Step 5: Solve for x
    x = 170,662,546.40/14,699.64
  6. Step 6: Final answer
    x = 11,609.98

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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.