Home / 15,579.60-21,499.92-8,506.19

Finding the Fourth Proportional to 15,579.60, 21,499.92 and 8,506.19

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Solution

The fourth proportional to 15,579.60, 21,499.92 and 8,506.19 is: 11,738.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,579.60 : 21,499.92 = 8,506.19 : x
  2. Step 2: Convert to fraction form
    15,579.60/21,499.92 = 8,506.19/x
  3. Step 3: Cross multiply
    15,579.60x = 21,499.92 × 8,506.19
  4. Step 4: Simplify right side
    15,579.60x = 182,882,404.50
  5. Step 5: Solve for x
    x = 182,882,404.50/15,579.60
  6. Step 6: Final answer
    x = 11,738.58

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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.