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Finding the Fourth Proportional to 14,212, 19,612.62 and 7,924.84

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Solution

The fourth proportional to 14,212, 19,612.62 and 7,924.84 is: 10,936.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,212 : 19,612.62 = 7,924.84 : x
  2. Step 2: Convert to fraction form
    14,212/19,612.62 = 7,924.84/x
  3. Step 3: Cross multiply
    14,212x = 19,612.62 × 7,924.84
  4. Step 4: Simplify right side
    14,212x = 155,426,875.48
  5. Step 5: Solve for x
    x = 155,426,875.48/14,212
  6. Step 6: Final answer
    x = 10,936.31

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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.