Home / 10,896.03-15,033.53-6,647.78

Finding the Fourth Proportional to 10,896.03, 15,033.53 and 6,647.78

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Solution

The fourth proportional to 10,896.03, 15,033.53 and 6,647.78 is: 9,172.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,896.03 : 15,033.53 = 6,647.78 : x
  2. Step 2: Convert to fraction form
    10,896.03/15,033.53 = 6,647.78/x
  3. Step 3: Cross multiply
    10,896.03x = 15,033.53 × 6,647.78
  4. Step 4: Simplify right side
    10,896.03x = 99,939,654.27
  5. Step 5: Solve for x
    x = 99,939,654.27/10,896.03
  6. Step 6: Final answer
    x = 9,172.12

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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.