Home / 7,112.10-10,652.76-5,160

Finding the Fourth Proportional to 7,112.10, 10,652.76 and 5,160

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Solution

The fourth proportional to 7,112.10, 10,652.76 and 5,160 is: 7,728.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.10 : 10,652.76 = 5,160 : x
  2. Step 2: Convert to fraction form
    7,112.10/10,652.76 = 5,160/x
  3. Step 3: Cross multiply
    7,112.10x = 10,652.76 × 5,160
  4. Step 4: Simplify right side
    7,112.10x = 54,968,241.60
  5. Step 5: Solve for x
    x = 54,968,241.60/7,112.10
  6. Step 6: Final answer
    x = 7,728.83

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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.