Home / 12,905.22-19,364.88-5,008.05

Finding the Fourth Proportional to 12,905.22, 19,364.88 and 5,008.05

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Solution

The fourth proportional to 12,905.22, 19,364.88 and 5,008.05 is: 7,514.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,905.22 : 19,364.88 = 5,008.05 : x
  2. Step 2: Convert to fraction form
    12,905.22/19,364.88 = 5,008.05/x
  3. Step 3: Cross multiply
    12,905.22x = 19,364.88 × 5,008.05
  4. Step 4: Simplify right side
    12,905.22x = 96,980,234.46
  5. Step 5: Solve for x
    x = 96,980,234.46/12,905.22
  6. Step 6: Final answer
    x = 7,514.81

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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.