Home / 15,416.16-21,274.24-8,342.56

Finding the Fourth Proportional to 15,416.16, 21,274.24 and 8,342.56

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Solution

The fourth proportional to 15,416.16, 21,274.24 and 8,342.56 is: 11,512.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,416.16 : 21,274.24 = 8,342.56 : x
  2. Step 2: Convert to fraction form
    15,416.16/21,274.24 = 8,342.56/x
  3. Step 3: Cross multiply
    15,416.16x = 21,274.24 × 8,342.56
  4. Step 4: Simplify right side
    15,416.16x = 177,481,623.65
  5. Step 5: Solve for x
    x = 177,481,623.65/15,416.16
  6. Step 6: Final answer
    x = 11,512.70

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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.