Home / 15,296.24-21,108.73-8,490.21

Finding the Fourth Proportional to 15,296.24, 21,108.73 and 8,490.21

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Solution

The fourth proportional to 15,296.24, 21,108.73 and 8,490.21 is: 11,716.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,296.24 : 21,108.73 = 8,490.21 : x
  2. Step 2: Convert to fraction form
    15,296.24/21,108.73 = 8,490.21/x
  3. Step 3: Cross multiply
    15,296.24x = 21,108.73 × 8,490.21
  4. Step 4: Simplify right side
    15,296.24x = 179,217,550.53
  5. Step 5: Solve for x
    x = 179,217,550.53/15,296.24
  6. Step 6: Final answer
    x = 11,716.44

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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.