Home / 11,245.23-15,500.12-9,003.15

Finding the Fourth Proportional to 11,245.23, 15,500.12 and 9,003.15

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Solution

The fourth proportional to 11,245.23, 15,500.12 and 9,003.15 is: 12,409.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.23 : 15,500.12 = 9,003.15 : x
  2. Step 2: Convert to fraction form
    11,245.23/15,500.12 = 9,003.15/x
  3. Step 3: Cross multiply
    11,245.23x = 15,500.12 × 9,003.15
  4. Step 4: Simplify right side
    11,245.23x = 139,549,860.36
  5. Step 5: Solve for x
    x = 139,549,860.36/11,245.23
  6. Step 6: Final answer
    x = 12,409.69

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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.