Home / 11,117.44-15,315.36-9,349.12

Finding the Fourth Proportional to 11,117.44, 15,315.36 and 9,349.12

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Solution

The fourth proportional to 11,117.44, 15,315.36 and 9,349.12 is: 12,879.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.44 : 15,315.36 = 9,349.12 : x
  2. Step 2: Convert to fraction form
    11,117.44/15,315.36 = 9,349.12/x
  3. Step 3: Cross multiply
    11,117.44x = 15,315.36 × 9,349.12
  4. Step 4: Simplify right side
    11,117.44x = 143,185,138.48
  5. Step 5: Solve for x
    x = 143,185,138.48/11,117.44
  6. Step 6: Final answer
    x = 12,879.33

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Double scale
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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.