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Finding the Fourth Proportional to 11,873.34, 16,388.09 and 7,402.29

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Solution

The fourth proportional to 11,873.34, 16,388.09 and 7,402.29 is: 10,216.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,873.34 : 16,388.09 = 7,402.29 : x
  2. Step 2: Convert to fraction form
    11,873.34/16,388.09 = 7,402.29/x
  3. Step 3: Cross multiply
    11,873.34x = 16,388.09 × 7,402.29
  4. Step 4: Simplify right side
    11,873.34x = 121,309,357.71
  5. Step 5: Solve for x
    x = 121,309,357.71/11,873.34
  6. Step 6: Final answer
    x = 10,216.95

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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.