Home / 11,329.81-15,630.77-8,352.72

Finding the Fourth Proportional to 11,329.81, 15,630.77 and 8,352.72

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Solution

The fourth proportional to 11,329.81, 15,630.77 and 8,352.72 is: 11,523.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,329.81 : 15,630.77 = 8,352.72 : x
  2. Step 2: Convert to fraction form
    11,329.81/15,630.77 = 8,352.72/x
  3. Step 3: Cross multiply
    11,329.81x = 15,630.77 × 8,352.72
  4. Step 4: Simplify right side
    11,329.81x = 130,559,466.08
  5. Step 5: Solve for x
    x = 130,559,466.08/11,329.81
  6. Step 6: Final answer
    x = 11,523.54

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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.