Home / 12,319.36-18,445.92-9,383.68

Finding the Fourth Proportional to 12,319.36, 18,445.92 and 9,383.68

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Solution

The fourth proportional to 12,319.36, 18,445.92 and 9,383.68 is: 14,050.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,319.36 : 18,445.92 = 9,383.68 : x
  2. Step 2: Convert to fraction form
    12,319.36/18,445.92 = 9,383.68/x
  3. Step 3: Cross multiply
    12,319.36x = 18,445.92 × 9,383.68
  4. Step 4: Simplify right side
    12,319.36x = 173,090,610.59
  5. Step 5: Solve for x
    x = 173,090,610.59/12,319.36
  6. Step 6: Final answer
    x = 14,050.29

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1.5x scale

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.