Home / 11,356.58-15,671.76-6,320.72

Finding the Fourth Proportional to 11,356.58, 15,671.76 and 6,320.72

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Solution

The fourth proportional to 11,356.58, 15,671.76 and 6,320.72 is: 8,722.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,356.58 : 15,671.76 = 6,320.72 : x
  2. Step 2: Convert to fraction form
    11,356.58/15,671.76 = 6,320.72/x
  3. Step 3: Cross multiply
    11,356.58x = 15,671.76 × 6,320.72
  4. Step 4: Simplify right side
    11,356.58x = 99,056,806.87
  5. Step 5: Solve for x
    x = 99,056,806.87/11,356.58
  6. Step 6: Final answer
    x = 8,722.42

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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.