Home / 11,339.07-15,644.18-6,861.12

Finding the Fourth Proportional to 11,339.07, 15,644.18 and 6,861.12

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Solution

The fourth proportional to 11,339.07, 15,644.18 and 6,861.12 is: 9,466.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,339.07 : 15,644.18 = 6,861.12 : x
  2. Step 2: Convert to fraction form
    11,339.07/15,644.18 = 6,861.12/x
  3. Step 3: Cross multiply
    11,339.07x = 15,644.18 × 6,861.12
  4. Step 4: Simplify right side
    11,339.07x = 107,336,561.98
  5. Step 5: Solve for x
    x = 107,336,561.98/11,339.07
  6. Step 6: Final answer
    x = 9,466.08

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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.