Home / 17,939.78-26,885.10-9,156.28

Finding the Fourth Proportional to 17,939.78, 26,885.10 and 9,156.28

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Solution

The fourth proportional to 17,939.78, 26,885.10 and 9,156.28 is: 13,721.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,939.78 : 26,885.10 = 9,156.28 : x
  2. Step 2: Convert to fraction form
    17,939.78/26,885.10 = 9,156.28/x
  3. Step 3: Cross multiply
    17,939.78x = 26,885.10 × 9,156.28
  4. Step 4: Simplify right side
    17,939.78x = 246,167,369.00
  5. Step 5: Solve for x
    x = 246,167,369.00/17,939.78
  6. Step 6: Final answer
    x = 13,721.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.