Home / 10,722.60-16,094.70-5,180.40

Finding the Fourth Proportional to 10,722.60, 16,094.70 and 5,180.40

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Solution

The fourth proportional to 10,722.60, 16,094.70 and 5,180.40 is: 7,775.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,722.60 : 16,094.70 = 5,180.40 : x
  2. Step 2: Convert to fraction form
    10,722.60/16,094.70 = 5,180.40/x
  3. Step 3: Cross multiply
    10,722.60x = 16,094.70 × 5,180.40
  4. Step 4: Simplify right side
    10,722.60x = 83,376,983.88
  5. Step 5: Solve for x
    x = 83,376,983.88/10,722.60
  6. Step 6: Final answer
    x = 7,775.82

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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.