Home / 11,015.87-15,203.10-6,540.72

Finding the Fourth Proportional to 11,015.87, 15,203.10 and 6,540.72

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Solution

The fourth proportional to 11,015.87, 15,203.10 and 6,540.72 is: 9,026.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,015.87 : 15,203.10 = 6,540.72 : x
  2. Step 2: Convert to fraction form
    11,015.87/15,203.10 = 6,540.72/x
  3. Step 3: Cross multiply
    11,015.87x = 15,203.10 × 6,540.72
  4. Step 4: Simplify right side
    11,015.87x = 99,439,220.23
  5. Step 5: Solve for x
    x = 99,439,220.23/11,015.87
  6. Step 6: Final answer
    x = 9,026.91

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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.