Home / 10,940.48-16,410.60-7,421.77

Finding the Fourth Proportional to 10,940.48, 16,410.60 and 7,421.77

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Solution

The fourth proportional to 10,940.48, 16,410.60 and 7,421.77 is: 11,132.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,940.48 : 16,410.60 = 7,421.77 : x
  2. Step 2: Convert to fraction form
    10,940.48/16,410.60 = 7,421.77/x
  3. Step 3: Cross multiply
    10,940.48x = 16,410.60 × 7,421.77
  4. Step 4: Simplify right side
    10,940.48x = 121,795,719.28
  5. Step 5: Solve for x
    x = 121,795,719.28/10,940.48
  6. Step 6: Final answer
    x = 11,132.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.