Home / 13,383.15-18,475.47-9,425.49

Finding the Fourth Proportional to 13,383.15, 18,475.47 and 9,425.49

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Solution

The fourth proportional to 13,383.15, 18,475.47 and 9,425.49 is: 13,011.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,383.15 : 18,475.47 = 9,425.49 : x
  2. Step 2: Convert to fraction form
    13,383.15/18,475.47 = 9,425.49/x
  3. Step 3: Cross multiply
    13,383.15x = 18,475.47 × 9,425.49
  4. Step 4: Simplify right side
    13,383.15x = 174,140,357.73
  5. Step 5: Solve for x
    x = 174,140,357.73/13,383.15
  6. Step 6: Final answer
    x = 13,011.91

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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.