Home / 10,939.40-15,096.58-6,223.72

Finding the Fourth Proportional to 10,939.40, 15,096.58 and 6,223.72

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Solution

The fourth proportional to 10,939.40, 15,096.58 and 6,223.72 is: 8,588.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.40 : 15,096.58 = 6,223.72 : x
  2. Step 2: Convert to fraction form
    10,939.40/15,096.58 = 6,223.72/x
  3. Step 3: Cross multiply
    10,939.40x = 15,096.58 × 6,223.72
  4. Step 4: Simplify right side
    10,939.40x = 93,956,886.88
  5. Step 5: Solve for x
    x = 93,956,886.88/10,939.40
  6. Step 6: Final answer
    x = 8,588.85

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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.