Home / 13,321.73-18,384.45-7,353.62

Finding the Fourth Proportional to 13,321.73, 18,384.45 and 7,353.62

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Solution

The fourth proportional to 13,321.73, 18,384.45 and 7,353.62 is: 10,148.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.73 : 18,384.45 = 7,353.62 : x
  2. Step 2: Convert to fraction form
    13,321.73/18,384.45 = 7,353.62/x
  3. Step 3: Cross multiply
    13,321.73x = 18,384.45 × 7,353.62
  4. Step 4: Simplify right side
    13,321.73x = 135,192,259.21
  5. Step 5: Solve for x
    x = 135,192,259.21/13,321.73
  6. Step 6: Final answer
    x = 10,148.25

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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.