Home / 8,073.12-11,139.48-4,930.32

Finding the Fourth Proportional to 8,073.12, 11,139.48 and 4,930.32

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Solution

The fourth proportional to 8,073.12, 11,139.48 and 4,930.32 is: 6,802.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,073.12 : 11,139.48 = 4,930.32 : x
  2. Step 2: Convert to fraction form
    8,073.12/11,139.48 = 4,930.32/x
  3. Step 3: Cross multiply
    8,073.12x = 11,139.48 × 4,930.32
  4. Step 4: Simplify right side
    8,073.12x = 54,921,201.03
  5. Step 5: Solve for x
    x = 54,921,201.03/8,073.12
  6. Step 6: Final answer
    x = 6,802.97

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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.