Home / 13,449.98-20,153.90-8,509.18

Finding the Fourth Proportional to 13,449.98, 20,153.90 and 8,509.18

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Solution

The fourth proportional to 13,449.98, 20,153.90 and 8,509.18 is: 12,750.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.98 : 20,153.90 = 8,509.18 : x
  2. Step 2: Convert to fraction form
    13,449.98/20,153.90 = 8,509.18/x
  3. Step 3: Cross multiply
    13,449.98x = 20,153.90 × 8,509.18
  4. Step 4: Simplify right side
    13,449.98x = 171,493,162.80
  5. Step 5: Solve for x
    x = 171,493,162.80/13,449.98
  6. Step 6: Final answer
    x = 12,750.44

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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.