Home / 11,239.08-15,502.66-6,930.60

Finding the Fourth Proportional to 11,239.08, 15,502.66 and 6,930.60

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Solution

The fourth proportional to 11,239.08, 15,502.66 and 6,930.60 is: 9,559.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.08 : 15,502.66 = 6,930.60 : x
  2. Step 2: Convert to fraction form
    11,239.08/15,502.66 = 6,930.60/x
  3. Step 3: Cross multiply
    11,239.08x = 15,502.66 × 6,930.60
  4. Step 4: Simplify right side
    11,239.08x = 107,442,735.40
  5. Step 5: Solve for x
    x = 107,442,735.40/11,239.08
  6. Step 6: Final answer
    x = 9,559.74

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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.