Home / 13,586.19-20,382.18-4,225.98

Finding the Fourth Proportional to 13,586.19, 20,382.18 and 4,225.98

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Solution

The fourth proportional to 13,586.19, 20,382.18 and 4,225.98 is: 6,339.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.19 : 20,382.18 = 4,225.98 : x
  2. Step 2: Convert to fraction form
    13,586.19/20,382.18 = 4,225.98/x
  3. Step 3: Cross multiply
    13,586.19x = 20,382.18 × 4,225.98
  4. Step 4: Simplify right side
    13,586.19x = 86,134,685.04
  5. Step 5: Solve for x
    x = 86,134,685.04/13,586.19
  6. Step 6: Final answer
    x = 6,339.87

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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.