Home / 13,493.34-18,623.93-8,187.03

Finding the Fourth Proportional to 13,493.34, 18,623.93 and 8,187.03

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Solution

The fourth proportional to 13,493.34, 18,623.93 and 8,187.03 is: 11,299.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,493.34 : 18,623.93 = 8,187.03 : x
  2. Step 2: Convert to fraction form
    13,493.34/18,623.93 = 8,187.03/x
  3. Step 3: Cross multiply
    13,493.34x = 18,623.93 × 8,187.03
  4. Step 4: Simplify right side
    13,493.34x = 152,474,632.69
  5. Step 5: Solve for x
    x = 152,474,632.69/13,493.34
  6. Step 6: Final answer
    x = 11,299.99

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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.