Home / 15,014.19-20,718.77-8,299.41

Finding the Fourth Proportional to 15,014.19, 20,718.77 and 8,299.41

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Solution

The fourth proportional to 15,014.19, 20,718.77 and 8,299.41 is: 11,452.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,014.19 : 20,718.77 = 8,299.41 : x
  2. Step 2: Convert to fraction form
    15,014.19/20,718.77 = 8,299.41/x
  3. Step 3: Cross multiply
    15,014.19x = 20,718.77 × 8,299.41
  4. Step 4: Simplify right side
    15,014.19x = 171,953,525.43
  5. Step 5: Solve for x
    x = 171,953,525.43/15,014.19
  6. Step 6: Final answer
    x = 11,452.73

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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.