Home / 12,689.26-19,035.70-3,924.84

Finding the Fourth Proportional to 12,689.26, 19,035.70 and 3,924.84

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Solution

The fourth proportional to 12,689.26, 19,035.70 and 3,924.84 is: 5,887.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,689.26 : 19,035.70 = 3,924.84 : x
  2. Step 2: Convert to fraction form
    12,689.26/19,035.70 = 3,924.84/x
  3. Step 3: Cross multiply
    12,689.26x = 19,035.70 × 3,924.84
  4. Step 4: Simplify right side
    12,689.26x = 74,712,076.79
  5. Step 5: Solve for x
    x = 74,712,076.79/12,689.26
  6. Step 6: Final answer
    x = 5,887.82

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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.