Home / 15,544.55-21,451.20-8,830.10

Finding the Fourth Proportional to 15,544.55, 21,451.20 and 8,830.10

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Solution

The fourth proportional to 15,544.55, 21,451.20 and 8,830.10 is: 12,185.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,544.55 : 21,451.20 = 8,830.10 : x
  2. Step 2: Convert to fraction form
    15,544.55/21,451.20 = 8,830.10/x
  3. Step 3: Cross multiply
    15,544.55x = 21,451.20 × 8,830.10
  4. Step 4: Simplify right side
    15,544.55x = 189,416,241.12
  5. Step 5: Solve for x
    x = 189,416,241.12/15,544.55
  6. Step 6: Final answer
    x = 12,185.38

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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.