Home / 13,043.40-19,574.70-5,257.80

Finding the Fourth Proportional to 13,043.40, 19,574.70 and 5,257.80

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Solution

The fourth proportional to 13,043.40, 19,574.70 and 5,257.80 is: 7,890.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,043.40 : 19,574.70 = 5,257.80 : x
  2. Step 2: Convert to fraction form
    13,043.40/19,574.70 = 5,257.80/x
  3. Step 3: Cross multiply
    13,043.40x = 19,574.70 × 5,257.80
  4. Step 4: Simplify right side
    13,043.40x = 102,919,857.66
  5. Step 5: Solve for x
    x = 102,919,857.66/13,043.40
  6. Step 6: Final answer
    x = 7,890.57

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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.