Home / 7,928.32-11,822.69-7,374.28

Finding the Fourth Proportional to 7,928.32, 11,822.69 and 7,374.28

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Solution

The fourth proportional to 7,928.32, 11,822.69 and 7,374.28 is: 10,996.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.32 : 11,822.69 = 7,374.28 : x
  2. Step 2: Convert to fraction form
    7,928.32/11,822.69 = 7,374.28/x
  3. Step 3: Cross multiply
    7,928.32x = 11,822.69 × 7,374.28
  4. Step 4: Simplify right side
    7,928.32x = 87,183,826.41
  5. Step 5: Solve for x
    x = 87,183,826.41/7,928.32
  6. Step 6: Final answer
    x = 10,996.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.