Home / 15,523.24-21,421.46-8,449.67

Finding the Fourth Proportional to 15,523.24, 21,421.46 and 8,449.67

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Solution

The fourth proportional to 15,523.24, 21,421.46 and 8,449.67 is: 11,660.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,523.24 : 21,421.46 = 8,449.67 : x
  2. Step 2: Convert to fraction form
    15,523.24/21,421.46 = 8,449.67/x
  3. Step 3: Cross multiply
    15,523.24x = 21,421.46 × 8,449.67
  4. Step 4: Simplify right side
    15,523.24x = 181,004,267.92
  5. Step 5: Solve for x
    x = 181,004,267.92/15,523.24
  6. Step 6: Final answer
    x = 11,660.21

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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.