Home / 15,722.89-23,579.33-5,190.95

Finding the Fourth Proportional to 15,722.89, 23,579.33 and 5,190.95

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Solution

The fourth proportional to 15,722.89, 23,579.33 and 5,190.95 is: 7,784.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,722.89 : 23,579.33 = 5,190.95 : x
  2. Step 2: Convert to fraction form
    15,722.89/23,579.33 = 5,190.95/x
  3. Step 3: Cross multiply
    15,722.89x = 23,579.33 × 5,190.95
  4. Step 4: Simplify right side
    15,722.89x = 122,399,156.06
  5. Step 5: Solve for x
    x = 122,399,156.06/15,722.89
  6. Step 6: Final answer
    x = 7,784.78

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1.5x scale

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.