Home / 11,146.48-15,383.76-6,366.40

Finding the Fourth Proportional to 11,146.48, 15,383.76 and 6,366.40

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Solution

The fourth proportional to 11,146.48, 15,383.76 and 6,366.40 is: 8,786.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.48 : 15,383.76 = 6,366.40 : x
  2. Step 2: Convert to fraction form
    11,146.48/15,383.76 = 6,366.40/x
  3. Step 3: Cross multiply
    11,146.48x = 15,383.76 × 6,366.40
  4. Step 4: Simplify right side
    11,146.48x = 97,939,169.66
  5. Step 5: Solve for x
    x = 97,939,169.66/11,146.48
  6. Step 6: Final answer
    x = 8,786.56

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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.