Home / 15,369.03-21,207.50-8,654.49

Finding the Fourth Proportional to 15,369.03, 21,207.50 and 8,654.49

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Solution

The fourth proportional to 15,369.03, 21,207.50 and 8,654.49 is: 11,942.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,369.03 : 21,207.50 = 8,654.49 : x
  2. Step 2: Convert to fraction form
    15,369.03/21,207.50 = 8,654.49/x
  3. Step 3: Cross multiply
    15,369.03x = 21,207.50 × 8,654.49
  4. Step 4: Simplify right side
    15,369.03x = 183,540,096.68
  5. Step 5: Solve for x
    x = 183,540,096.68/15,369.03
  6. Step 6: Final answer
    x = 11,942.20

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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.