Home / 12,286.34-18,432.14-4,389.24

Finding the Fourth Proportional to 12,286.34, 18,432.14 and 4,389.24

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Solution

The fourth proportional to 12,286.34, 18,432.14 and 4,389.24 is: 6,584.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.34 : 18,432.14 = 4,389.24 : x
  2. Step 2: Convert to fraction form
    12,286.34/18,432.14 = 4,389.24/x
  3. Step 3: Cross multiply
    12,286.34x = 18,432.14 × 4,389.24
  4. Step 4: Simplify right side
    12,286.34x = 80,903,064.23
  5. Step 5: Solve for x
    x = 80,903,064.23/12,286.34
  6. Step 6: Final answer
    x = 6,584.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.