Home / 15,886.20-21,922.62-9,834.84

Finding the Fourth Proportional to 15,886.20, 21,922.62 and 9,834.84

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Solution

The fourth proportional to 15,886.20, 21,922.62 and 9,834.84 is: 13,571.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,886.20 : 21,922.62 = 9,834.84 : x
  2. Step 2: Convert to fraction form
    15,886.20/21,922.62 = 9,834.84/x
  3. Step 3: Cross multiply
    15,886.20x = 21,922.62 × 9,834.84
  4. Step 4: Simplify right side
    15,886.20x = 215,605,460.08
  5. Step 5: Solve for x
    x = 215,605,460.08/15,886.20
  6. Step 6: Final answer
    x = 13,571.87

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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.