Home / 15,338.28-21,166.68-8,623.92

Finding the Fourth Proportional to 15,338.28, 21,166.68 and 8,623.92

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Solution

The fourth proportional to 15,338.28, 21,166.68 and 8,623.92 is: 11,900.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338.28 : 21,166.68 = 8,623.92 : x
  2. Step 2: Convert to fraction form
    15,338.28/21,166.68 = 8,623.92/x
  3. Step 3: Cross multiply
    15,338.28x = 21,166.68 × 8,623.92
  4. Step 4: Simplify right side
    15,338.28x = 182,539,754.99
  5. Step 5: Solve for x
    x = 182,539,754.99/15,338.28
  6. Step 6: Final answer
    x = 11,900.93

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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.