Home / 11,187.03-15,438.09-6,151.57

Finding the Fourth Proportional to 11,187.03, 15,438.09 and 6,151.57

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Solution

The fourth proportional to 11,187.03, 15,438.09 and 6,151.57 is: 8,489.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.03 : 15,438.09 = 6,151.57 : x
  2. Step 2: Convert to fraction form
    11,187.03/15,438.09 = 6,151.57/x
  3. Step 3: Cross multiply
    11,187.03x = 15,438.09 × 6,151.57
  4. Step 4: Simplify right side
    11,187.03x = 94,968,491.30
  5. Step 5: Solve for x
    x = 94,968,491.30/11,187.03
  6. Step 6: Final answer
    x = 8,489.16

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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.