Home / 9,325.48-12,811.60-8,343.76

Finding the Fourth Proportional to 9,325.48, 12,811.60 and 8,343.76

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Solution

The fourth proportional to 9,325.48, 12,811.60 and 8,343.76 is: 11,462.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,325.48 : 12,811.60 = 8,343.76 : x
  2. Step 2: Convert to fraction form
    9,325.48/12,811.60 = 8,343.76/x
  3. Step 3: Cross multiply
    9,325.48x = 12,811.60 × 8,343.76
  4. Step 4: Simplify right side
    9,325.48x = 106,896,915.62
  5. Step 5: Solve for x
    x = 106,896,915.62/9,325.48
  6. Step 6: Final answer
    x = 11,462.89

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Double scale
Find fourth proportional to 9,326.48, 12,812.97 and 8,344.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.