Home / 10,321.48-14,243.70-6,129.64

Finding the Fourth Proportional to 10,321.48, 14,243.70 and 6,129.64

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Solution

The fourth proportional to 10,321.48, 14,243.70 and 6,129.64 is: 8,458.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,321.48 : 14,243.70 = 6,129.64 : x
  2. Step 2: Convert to fraction form
    10,321.48/14,243.70 = 6,129.64/x
  3. Step 3: Cross multiply
    10,321.48x = 14,243.70 × 6,129.64
  4. Step 4: Simplify right side
    10,321.48x = 87,308,753.27
  5. Step 5: Solve for x
    x = 87,308,753.27/10,321.48
  6. Step 6: Final answer
    x = 8,458.94

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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.