Home / 11,411.33-15,749.60-8,435.79

Finding the Fourth Proportional to 11,411.33, 15,749.60 and 8,435.79

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Solution

The fourth proportional to 11,411.33, 15,749.60 and 8,435.79 is: 11,642.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,411.33 : 15,749.60 = 8,435.79 : x
  2. Step 2: Convert to fraction form
    11,411.33/15,749.60 = 8,435.79/x
  3. Step 3: Cross multiply
    11,411.33x = 15,749.60 × 8,435.79
  4. Step 4: Simplify right side
    11,411.33x = 132,860,276.01
  5. Step 5: Solve for x
    x = 132,860,276.01/11,411.33
  6. Step 6: Final answer
    x = 11,642.84

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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.