Home / 15,604.28-21,534.92-8,890.12

Finding the Fourth Proportional to 15,604.28, 21,534.92 and 8,890.12

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Solution

The fourth proportional to 15,604.28, 21,534.92 and 8,890.12 is: 12,268.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,604.28 : 21,534.92 = 8,890.12 : x
  2. Step 2: Convert to fraction form
    15,604.28/21,534.92 = 8,890.12/x
  3. Step 3: Cross multiply
    15,604.28x = 21,534.92 × 8,890.12
  4. Step 4: Simplify right side
    15,604.28x = 191,448,022.99
  5. Step 5: Solve for x
    x = 191,448,022.99/15,604.28
  6. Step 6: Final answer
    x = 12,268.94

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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.