Home / 13,383.60-18,463.44-9,407.31

Finding the Fourth Proportional to 13,383.60, 18,463.44 and 9,407.31

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Solution

The fourth proportional to 13,383.60, 18,463.44 and 9,407.31 is: 12,977.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,383.60 : 18,463.44 = 9,407.31 : x
  2. Step 2: Convert to fraction form
    13,383.60/18,463.44 = 9,407.31/x
  3. Step 3: Cross multiply
    13,383.60x = 18,463.44 × 9,407.31
  4. Step 4: Simplify right side
    13,383.60x = 173,691,303.75
  5. Step 5: Solve for x
    x = 173,691,303.75/13,383.60
  6. Step 6: Final answer
    x = 12,977.92

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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.