Home / 13,715.64-20,546.06-6,309.95

Finding the Fourth Proportional to 13,715.64, 20,546.06 and 6,309.95

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Solution

The fourth proportional to 13,715.64, 20,546.06 and 6,309.95 is: 9,452.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,715.64 : 20,546.06 = 6,309.95 : x
  2. Step 2: Convert to fraction form
    13,715.64/20,546.06 = 6,309.95/x
  3. Step 3: Cross multiply
    13,715.64x = 20,546.06 × 6,309.95
  4. Step 4: Simplify right side
    13,715.64x = 129,644,477.02
  5. Step 5: Solve for x
    x = 129,644,477.02/13,715.64
  6. Step 6: Final answer
    x = 9,452.31

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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.