Home / 10,893.36-15,034.50-6,115.20

Finding the Fourth Proportional to 10,893.36, 15,034.50 and 6,115.20

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Solution

The fourth proportional to 10,893.36, 15,034.50 and 6,115.20 is: 8,439.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,893.36 : 15,034.50 = 6,115.20 : x
  2. Step 2: Convert to fraction form
    10,893.36/15,034.50 = 6,115.20/x
  3. Step 3: Cross multiply
    10,893.36x = 15,034.50 × 6,115.20
  4. Step 4: Simplify right side
    10,893.36x = 91,938,974.40
  5. Step 5: Solve for x
    x = 91,938,974.40/10,893.36
  6. Step 6: Final answer
    x = 8,439.91

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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.