Home / 15,416.06-21,274.26-8,342.47

Finding the Fourth Proportional to 15,416.06, 21,274.26 and 8,342.47

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Solution

The fourth proportional to 15,416.06, 21,274.26 and 8,342.47 is: 11,512.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,416.06 : 21,274.26 = 8,342.47 : x
  2. Step 2: Convert to fraction form
    15,416.06/21,274.26 = 8,342.47/x
  3. Step 3: Cross multiply
    15,416.06x = 21,274.26 × 8,342.47
  4. Step 4: Simplify right side
    15,416.06x = 177,479,875.82
  5. Step 5: Solve for x
    x = 177,479,875.82/15,416.06
  6. Step 6: Final answer
    x = 11,512.66

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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.