Home / 19,161.64-26,428.06-12,449.42

Finding the Fourth Proportional to 19,161.64, 26,428.06 and 12,449.42

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Solution

The fourth proportional to 19,161.64, 26,428.06 and 12,449.42 is: 17,170.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,161.64 : 26,428.06 = 12,449.42 : x
  2. Step 2: Convert to fraction form
    19,161.64/26,428.06 = 12,449.42/x
  3. Step 3: Cross multiply
    19,161.64x = 26,428.06 × 12,449.42
  4. Step 4: Simplify right side
    19,161.64x = 329,014,018.73
  5. Step 5: Solve for x
    x = 329,014,018.73/19,161.64
  6. Step 6: Final answer
    x = 17,170.45

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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.