Home / 13,148.30-19,722.45-3,914.30

Finding the Fourth Proportional to 13,148.30, 19,722.45 and 3,914.30

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Solution

The fourth proportional to 13,148.30, 19,722.45 and 3,914.30 is: 5,871.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148.30 : 19,722.45 = 3,914.30 : x
  2. Step 2: Convert to fraction form
    13,148.30/19,722.45 = 3,914.30/x
  3. Step 3: Cross multiply
    13,148.30x = 19,722.45 × 3,914.30
  4. Step 4: Simplify right side
    13,148.30x = 77,199,650.02
  5. Step 5: Solve for x
    x = 77,199,650.02/13,148.30
  6. Step 6: Final answer
    x = 5,871.45

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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.