Home / 11,085.36-15,295.68-6,369.84

Finding the Fourth Proportional to 11,085.36, 15,295.68 and 6,369.84

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Solution

The fourth proportional to 11,085.36, 15,295.68 and 6,369.84 is: 8,789.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,085.36 : 15,295.68 = 6,369.84 : x
  2. Step 2: Convert to fraction form
    11,085.36/15,295.68 = 6,369.84/x
  3. Step 3: Cross multiply
    11,085.36x = 15,295.68 × 6,369.84
  4. Step 4: Simplify right side
    11,085.36x = 97,431,034.29
  5. Step 5: Solve for x
    x = 97,431,034.29/11,085.36
  6. Step 6: Final answer
    x = 8,789.16

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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.