Home / 11,368.41-15,684.07-8,391.35

Finding the Fourth Proportional to 11,368.41, 15,684.07 and 8,391.35

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Solution

The fourth proportional to 11,368.41, 15,684.07 and 8,391.35 is: 11,576.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,368.41 : 15,684.07 = 8,391.35 : x
  2. Step 2: Convert to fraction form
    11,368.41/15,684.07 = 8,391.35/x
  3. Step 3: Cross multiply
    11,368.41x = 15,684.07 × 8,391.35
  4. Step 4: Simplify right side
    11,368.41x = 131,610,520.79
  5. Step 5: Solve for x
    x = 131,610,520.79/11,368.41
  6. Step 6: Final answer
    x = 11,576.86

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Half scale
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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.