Home / 11,201.18-15,454.77-6,485.18

Finding the Fourth Proportional to 11,201.18, 15,454.77 and 6,485.18

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Solution

The fourth proportional to 11,201.18, 15,454.77 and 6,485.18 is: 8,947.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,201.18 : 15,454.77 = 6,485.18 : x
  2. Step 2: Convert to fraction form
    11,201.18/15,454.77 = 6,485.18/x
  3. Step 3: Cross multiply
    11,201.18x = 15,454.77 × 6,485.18
  4. Step 4: Simplify right side
    11,201.18x = 100,226,965.31
  5. Step 5: Solve for x
    x = 100,226,965.31/11,201.18
  6. Step 6: Final answer
    x = 8,947.89

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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.