Home / 14,654.34-20,222.64-7,939.68

Finding the Fourth Proportional to 14,654.34, 20,222.64 and 7,939.68

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Solution

The fourth proportional to 14,654.34, 20,222.64 and 7,939.68 is: 10,956.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,654.34 : 20,222.64 = 7,939.68 : x
  2. Step 2: Convert to fraction form
    14,654.34/20,222.64 = 7,939.68/x
  3. Step 3: Cross multiply
    14,654.34x = 20,222.64 × 7,939.68
  4. Step 4: Simplify right side
    14,654.34x = 160,561,290.36
  5. Step 5: Solve for x
    x = 160,561,290.36/14,654.34
  6. Step 6: Final answer
    x = 10,956.57

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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.