Home / 15,561.38-21,474.61-8,847.01

Finding the Fourth Proportional to 15,561.38, 21,474.61 and 8,847.01

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Solution

The fourth proportional to 15,561.38, 21,474.61 and 8,847.01 is: 12,208.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,561.38 : 21,474.61 = 8,847.01 : x
  2. Step 2: Convert to fraction form
    15,561.38/21,474.61 = 8,847.01/x
  3. Step 3: Cross multiply
    15,561.38x = 21,474.61 × 8,847.01
  4. Step 4: Simplify right side
    15,561.38x = 189,986,120.99
  5. Step 5: Solve for x
    x = 189,986,120.99/15,561.38
  6. Step 6: Final answer
    x = 12,208.82

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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.