Home / 13,729.48-18,946.63-7,441.87

Finding the Fourth Proportional to 13,729.48, 18,946.63 and 7,441.87

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Solution

The fourth proportional to 13,729.48, 18,946.63 and 7,441.87 is: 10,269.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729.48 : 18,946.63 = 7,441.87 : x
  2. Step 2: Convert to fraction form
    13,729.48/18,946.63 = 7,441.87/x
  3. Step 3: Cross multiply
    13,729.48x = 18,946.63 × 7,441.87
  4. Step 4: Simplify right side
    13,729.48x = 140,998,357.40
  5. Step 5: Solve for x
    x = 140,998,357.40/13,729.48
  6. Step 6: Final answer
    x = 10,269.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.