Home / 11,469.21-15,823.77-6,688.07

Finding the Fourth Proportional to 11,469.21, 15,823.77 and 6,688.07

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Solution

The fourth proportional to 11,469.21, 15,823.77 and 6,688.07 is: 9,227.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,469.21 : 15,823.77 = 6,688.07 : x
  2. Step 2: Convert to fraction form
    11,469.21/15,823.77 = 6,688.07/x
  3. Step 3: Cross multiply
    11,469.21x = 15,823.77 × 6,688.07
  4. Step 4: Simplify right side
    11,469.21x = 105,830,481.42
  5. Step 5: Solve for x
    x = 105,830,481.42/11,469.21
  6. Step 6: Final answer
    x = 9,227.36

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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.