Home / 19,651.68-29,458.62-12,612.06

Finding the Fourth Proportional to 19,651.68, 29,458.62 and 12,612.06

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Solution

The fourth proportional to 19,651.68, 29,458.62 and 12,612.06 is: 18,905.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,651.68 : 29,458.62 = 12,612.06 : x
  2. Step 2: Convert to fraction form
    19,651.68/29,458.62 = 12,612.06/x
  3. Step 3: Cross multiply
    19,651.68x = 29,458.62 × 12,612.06
  4. Step 4: Simplify right side
    19,651.68x = 371,533,882.96
  5. Step 5: Solve for x
    x = 371,533,882.96/19,651.68
  6. Step 6: Final answer
    x = 18,905.96

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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.