Home / 15,579.60-23,374.80-6,820.80

Finding the Fourth Proportional to 15,579.60, 23,374.80 and 6,820.80

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Solution

The fourth proportional to 15,579.60, 23,374.80 and 6,820.80 is: 10,233.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,579.60 : 23,374.80 = 6,820.80 : x
  2. Step 2: Convert to fraction form
    15,579.60/23,374.80 = 6,820.80/x
  3. Step 3: Cross multiply
    15,579.60x = 23,374.80 × 6,820.80
  4. Step 4: Simplify right side
    15,579.60x = 159,434,835.84
  5. Step 5: Solve for x
    x = 159,434,835.84/15,579.60
  6. Step 6: Final answer
    x = 10,233.56

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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.