Home / 15,869.58-21,901.61-8,797.37

Finding the Fourth Proportional to 15,869.58, 21,901.61 and 8,797.37

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Solution

The fourth proportional to 15,869.58, 21,901.61 and 8,797.37 is: 12,141.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,869.58 : 21,901.61 = 8,797.37 : x
  2. Step 2: Convert to fraction form
    15,869.58/21,901.61 = 8,797.37/x
  3. Step 3: Cross multiply
    15,869.58x = 21,901.61 × 8,797.37
  4. Step 4: Simplify right side
    15,869.58x = 192,676,479.25
  5. Step 5: Solve for x
    x = 192,676,479.25/15,869.58
  6. Step 6: Final answer
    x = 12,141.25

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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.