Home / 10,980.60-16,475.70-5,134.20

Finding the Fourth Proportional to 10,980.60, 16,475.70 and 5,134.20

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Solution

The fourth proportional to 10,980.60, 16,475.70 and 5,134.20 is: 7,703.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,980.60 : 16,475.70 = 5,134.20 : x
  2. Step 2: Convert to fraction form
    10,980.60/16,475.70 = 5,134.20/x
  3. Step 3: Cross multiply
    10,980.60x = 16,475.70 × 5,134.20
  4. Step 4: Simplify right side
    10,980.60x = 84,589,538.94
  5. Step 5: Solve for x
    x = 84,589,538.94/10,980.60
  6. Step 6: Final answer
    x = 7,703.54

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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.