Home / 7,905.28-10,911.72-5,110.24

Finding the Fourth Proportional to 7,905.28, 10,911.72 and 5,110.24

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Solution

The fourth proportional to 7,905.28, 10,911.72 and 5,110.24 is: 7,053.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.28 : 10,911.72 = 5,110.24 : x
  2. Step 2: Convert to fraction form
    7,905.28/10,911.72 = 5,110.24/x
  3. Step 3: Cross multiply
    7,905.28x = 10,911.72 × 5,110.24
  4. Step 4: Simplify right side
    7,905.28x = 55,761,508.01
  5. Step 5: Solve for x
    x = 55,761,508.01/7,905.28
  6. Step 6: Final answer
    x = 7,053.70

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1.5x scale

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.