Home / 15,416.19-21,274.38-8,342.69

Finding the Fourth Proportional to 15,416.19, 21,274.38 and 8,342.69

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Solution

The fourth proportional to 15,416.19, 21,274.38 and 8,342.69 is: 11,512.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,416.19 : 21,274.38 = 8,342.69 : x
  2. Step 2: Convert to fraction form
    15,416.19/21,274.38 = 8,342.69/x
  3. Step 3: Cross multiply
    15,416.19x = 21,274.38 × 8,342.69
  4. Step 4: Simplify right side
    15,416.19x = 177,485,450.91
  5. Step 5: Solve for x
    x = 177,485,450.91/15,416.19
  6. Step 6: Final answer
    x = 11,512.93

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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.