Home / 14,212.26-19,612.68-7,839.47

Finding the Fourth Proportional to 14,212.26, 19,612.68 and 7,839.47

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Solution

The fourth proportional to 14,212.26, 19,612.68 and 7,839.47 is: 10,818.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,212.26 : 19,612.68 = 7,839.47 : x
  2. Step 2: Convert to fraction form
    14,212.26/19,612.68 = 7,839.47/x
  3. Step 3: Cross multiply
    14,212.26x = 19,612.68 × 7,839.47
  4. Step 4: Simplify right side
    14,212.26x = 153,753,052.63
  5. Step 5: Solve for x
    x = 153,753,052.63/14,212.26
  6. Step 6: Final answer
    x = 10,818.34

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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.