Home / 15,396.56-21,247.24-8,322.99

Finding the Fourth Proportional to 15,396.56, 21,247.24 and 8,322.99

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Solution

The fourth proportional to 15,396.56, 21,247.24 and 8,322.99 is: 11,485.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,396.56 : 21,247.24 = 8,322.99 : x
  2. Step 2: Convert to fraction form
    15,396.56/21,247.24 = 8,322.99/x
  3. Step 3: Cross multiply
    15,396.56x = 21,247.24 × 8,322.99
  4. Step 4: Simplify right side
    15,396.56x = 176,840,545.24
  5. Step 5: Solve for x
    x = 176,840,545.24/15,396.56
  6. Step 6: Final answer
    x = 11,485.72

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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.