Home / 13,216.80-19,820.88-4,449.63

Finding the Fourth Proportional to 13,216.80, 19,820.88 and 4,449.63

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Solution

The fourth proportional to 13,216.80, 19,820.88 and 4,449.63 is: 6,672.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.80 : 19,820.88 = 4,449.63 : x
  2. Step 2: Convert to fraction form
    13,216.80/19,820.88 = 4,449.63/x
  3. Step 3: Cross multiply
    13,216.80x = 19,820.88 × 4,449.63
  4. Step 4: Simplify right side
    13,216.80x = 88,195,582.27
  5. Step 5: Solve for x
    x = 88,195,582.27/13,216.80
  6. Step 6: Final answer
    x = 6,672.99

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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.