Home / 15,014.30-20,719.57-8,299.60

Finding the Fourth Proportional to 15,014.30, 20,719.57 and 8,299.60

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Solution

The fourth proportional to 15,014.30, 20,719.57 and 8,299.60 is: 11,453.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,014.30 : 20,719.57 = 8,299.60 : x
  2. Step 2: Convert to fraction form
    15,014.30/20,719.57 = 8,299.60/x
  3. Step 3: Cross multiply
    15,014.30x = 20,719.57 × 8,299.60
  4. Step 4: Simplify right side
    15,014.30x = 171,964,039.57
  5. Step 5: Solve for x
    x = 171,964,039.57/15,014.30
  6. Step 6: Final answer
    x = 11,453.35

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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.