Home / 11,155.32-15,495.03-10,976.58

Finding the Fourth Proportional to 11,155.32, 15,495.03 and 10,976.58

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Solution

The fourth proportional to 11,155.32, 15,495.03 and 10,976.58 is: 15,246.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,155.32 : 15,495.03 = 10,976.58 : x
  2. Step 2: Convert to fraction form
    11,155.32/15,495.03 = 10,976.58/x
  3. Step 3: Cross multiply
    11,155.32x = 15,495.03 × 10,976.58
  4. Step 4: Simplify right side
    11,155.32x = 170,082,436.40
  5. Step 5: Solve for x
    x = 170,082,436.40/11,155.32
  6. Step 6: Final answer
    x = 15,246.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.