Home / 13,458.24-18,558.99-8,982.18

Finding the Fourth Proportional to 13,458.24, 18,558.99 and 8,982.18

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Solution

The fourth proportional to 13,458.24, 18,558.99 and 8,982.18 is: 12,386.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.24 : 18,558.99 = 8,982.18 : x
  2. Step 2: Convert to fraction form
    13,458.24/18,558.99 = 8,982.18/x
  3. Step 3: Cross multiply
    13,458.24x = 18,558.99 × 8,982.18
  4. Step 4: Simplify right side
    13,458.24x = 166,700,188.80
  5. Step 5: Solve for x
    x = 166,700,188.80/13,458.24
  6. Step 6: Final answer
    x = 12,386.48

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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.