Home / 13,416.52-18,521.46-8,383.53

Finding the Fourth Proportional to 13,416.52, 18,521.46 and 8,383.53

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Solution

The fourth proportional to 13,416.52, 18,521.46 and 8,383.53 is: 11,573.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.52 : 18,521.46 = 8,383.53 : x
  2. Step 2: Convert to fraction form
    13,416.52/18,521.46 = 8,383.53/x
  3. Step 3: Cross multiply
    13,416.52x = 18,521.46 × 8,383.53
  4. Step 4: Simplify right side
    13,416.52x = 155,275,215.55
  5. Step 5: Solve for x
    x = 155,275,215.55/13,416.52
  6. Step 6: Final answer
    x = 11,573.43

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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.