Home / 13,835.64-20,761.69-5,071.17

Finding the Fourth Proportional to 13,835.64, 20,761.69 and 5,071.17

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Solution

The fourth proportional to 13,835.64, 20,761.69 and 5,071.17 is: 7,609.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,835.64 : 20,761.69 = 5,071.17 : x
  2. Step 2: Convert to fraction form
    13,835.64/20,761.69 = 5,071.17/x
  3. Step 3: Cross multiply
    13,835.64x = 20,761.69 × 5,071.17
  4. Step 4: Simplify right side
    13,835.64x = 105,286,059.48
  5. Step 5: Solve for x
    x = 105,286,059.48/13,835.64
  6. Step 6: Final answer
    x = 7,609.77

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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.