Home / 13,307.81-19,961.69-6,735.87

Finding the Fourth Proportional to 13,307.81, 19,961.69 and 6,735.87

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Solution

The fourth proportional to 13,307.81, 19,961.69 and 6,735.87 is: 10,103.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.81 : 19,961.69 = 6,735.87 : x
  2. Step 2: Convert to fraction form
    13,307.81/19,961.69 = 6,735.87/x
  3. Step 3: Cross multiply
    13,307.81x = 19,961.69 × 6,735.87
  4. Step 4: Simplify right side
    13,307.81x = 134,459,315.14
  5. Step 5: Solve for x
    x = 134,459,315.14/13,307.81
  6. Step 6: Final answer
    x = 10,103.79

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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.