Home / 15,274.44-21,072.66-8,976.84

Finding the Fourth Proportional to 15,274.44, 21,072.66 and 8,976.84

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Solution

The fourth proportional to 15,274.44, 21,072.66 and 8,976.84 is: 12,384.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,274.44 : 21,072.66 = 8,976.84 : x
  2. Step 2: Convert to fraction form
    15,274.44/21,072.66 = 8,976.84/x
  3. Step 3: Cross multiply
    15,274.44x = 21,072.66 × 8,976.84
  4. Step 4: Simplify right side
    15,274.44x = 189,165,897.19
  5. Step 5: Solve for x
    x = 189,165,897.19/15,274.44
  6. Step 6: Final answer
    x = 12,384.47

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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.