Home / 15,396.68-21,247.39-8,682.26

Finding the Fourth Proportional to 15,396.68, 21,247.39 and 8,682.26

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Solution

The fourth proportional to 15,396.68, 21,247.39 and 8,682.26 is: 11,981.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,396.68 : 21,247.39 = 8,682.26 : x
  2. Step 2: Convert to fraction form
    15,396.68/21,247.39 = 8,682.26/x
  3. Step 3: Cross multiply
    15,396.68x = 21,247.39 × 8,682.26
  4. Step 4: Simplify right side
    15,396.68x = 184,475,423.77
  5. Step 5: Solve for x
    x = 184,475,423.77/15,396.68
  6. Step 6: Final answer
    x = 11,981.50

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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.