Home / 13,694.04-20,536.95-7,116.64

Finding the Fourth Proportional to 13,694.04, 20,536.95 and 7,116.64

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Solution

The fourth proportional to 13,694.04, 20,536.95 and 7,116.64 is: 10,672.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,694.04 : 20,536.95 = 7,116.64 : x
  2. Step 2: Convert to fraction form
    13,694.04/20,536.95 = 7,116.64/x
  3. Step 3: Cross multiply
    13,694.04x = 20,536.95 × 7,116.64
  4. Step 4: Simplify right side
    13,694.04x = 146,154,079.85
  5. Step 5: Solve for x
    x = 146,154,079.85/13,694.04
  6. Step 6: Final answer
    x = 10,672.82

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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.