Home / 15,869.26-21,901.35-8,797.42

Finding the Fourth Proportional to 15,869.26, 21,901.35 and 8,797.42

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Solution

The fourth proportional to 15,869.26, 21,901.35 and 8,797.42 is: 12,141.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,869.26 : 21,901.35 = 8,797.42 : x
  2. Step 2: Convert to fraction form
    15,869.26/21,901.35 = 8,797.42/x
  3. Step 3: Cross multiply
    15,869.26x = 21,901.35 × 8,797.42
  4. Step 4: Simplify right side
    15,869.26x = 192,675,374.52
  5. Step 5: Solve for x
    x = 192,675,374.52/15,869.26
  6. Step 6: Final answer
    x = 12,141.42

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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.