Home / 12,700.89-19,063.62-6,131.70

Finding the Fourth Proportional to 12,700.89, 19,063.62 and 6,131.70

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Solution

The fourth proportional to 12,700.89, 19,063.62 and 6,131.70 is: 9,203.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700.89 : 19,063.62 = 6,131.70 : x
  2. Step 2: Convert to fraction form
    12,700.89/19,063.62 = 6,131.70/x
  3. Step 3: Cross multiply
    12,700.89x = 19,063.62 × 6,131.70
  4. Step 4: Simplify right side
    12,700.89x = 116,892,398.75
  5. Step 5: Solve for x
    x = 116,892,398.75/12,700.89
  6. Step 6: Final answer
    x = 9,203.48

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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.