Home / 12,734.40-19,103.53-3,970

Finding the Fourth Proportional to 12,734.40, 19,103.53 and 3,970

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Solution

The fourth proportional to 12,734.40, 19,103.53 and 3,970 is: 5,955.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,734.40 : 19,103.53 = 3,970 : x
  2. Step 2: Convert to fraction form
    12,734.40/19,103.53 = 3,970/x
  3. Step 3: Cross multiply
    12,734.40x = 19,103.53 × 3,970
  4. Step 4: Simplify right side
    12,734.40x = 75,841,014.10
  5. Step 5: Solve for x
    x = 75,841,014.10/12,734.40
  6. Step 6: Final answer
    x = 5,955.60

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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.