Home / 13,129.29-19,697.90-4,694.69

Finding the Fourth Proportional to 13,129.29, 19,697.90 and 4,694.69

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Solution

The fourth proportional to 13,129.29, 19,697.90 and 4,694.69 is: 7,043.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.29 : 19,697.90 = 4,694.69 : x
  2. Step 2: Convert to fraction form
    13,129.29/19,697.90 = 4,694.69/x
  3. Step 3: Cross multiply
    13,129.29x = 19,697.90 × 4,694.69
  4. Step 4: Simplify right side
    13,129.29x = 92,475,534.15
  5. Step 5: Solve for x
    x = 92,475,534.15/13,129.29
  6. Step 6: Final answer
    x = 7,043.45

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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.