Home / 13,690.26-20,538.47-4,330.84

Finding the Fourth Proportional to 13,690.26, 20,538.47 and 4,330.84

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Solution

The fourth proportional to 13,690.26, 20,538.47 and 4,330.84 is: 6,497.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690.26 : 20,538.47 = 4,330.84 : x
  2. Step 2: Convert to fraction form
    13,690.26/20,538.47 = 4,330.84/x
  3. Step 3: Cross multiply
    13,690.26x = 20,538.47 × 4,330.84
  4. Step 4: Simplify right side
    13,690.26x = 88,948,827.41
  5. Step 5: Solve for x
    x = 88,948,827.41/13,690.26
  6. Step 6: Final answer
    x = 6,497.23

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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.