Home / 13,748.20-18,972.44-7,460.56

Finding the Fourth Proportional to 13,748.20, 18,972.44 and 7,460.56

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Solution

The fourth proportional to 13,748.20, 18,972.44 and 7,460.56 is: 10,295.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.20 : 18,972.44 = 7,460.56 : x
  2. Step 2: Convert to fraction form
    13,748.20/18,972.44 = 7,460.56/x
  3. Step 3: Cross multiply
    13,748.20x = 18,972.44 × 7,460.56
  4. Step 4: Simplify right side
    13,748.20x = 141,545,026.97
  5. Step 5: Solve for x
    x = 141,545,026.97/13,748.20
  6. Step 6: Final answer
    x = 10,295.53

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1.5x scale

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.