Home / 12,399.86-18,581.56-9,773.64

Finding the Fourth Proportional to 12,399.86, 18,581.56 and 9,773.64

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Solution

The fourth proportional to 12,399.86, 18,581.56 and 9,773.64 is: 14,646.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399.86 : 18,581.56 = 9,773.64 : x
  2. Step 2: Convert to fraction form
    12,399.86/18,581.56 = 9,773.64/x
  3. Step 3: Cross multiply
    12,399.86x = 18,581.56 × 9,773.64
  4. Step 4: Simplify right side
    12,399.86x = 181,609,478.08
  5. Step 5: Solve for x
    x = 181,609,478.08/12,399.86
  6. Step 6: Final answer
    x = 14,646.09

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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.