Home / 13,729.10-20,599.85-6,329.61

Finding the Fourth Proportional to 13,729.10, 20,599.85 and 6,329.61

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Solution

The fourth proportional to 13,729.10, 20,599.85 and 6,329.61 is: 9,497.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729.10 : 20,599.85 = 6,329.61 : x
  2. Step 2: Convert to fraction form
    13,729.10/20,599.85 = 6,329.61/x
  3. Step 3: Cross multiply
    13,729.10x = 20,599.85 × 6,329.61
  4. Step 4: Simplify right side
    13,729.10x = 130,389,032.38
  5. Step 5: Solve for x
    x = 130,389,032.38/13,729.10
  6. Step 6: Final answer
    x = 9,497.28

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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.