Home / 14,212.88-19,612.68-7,924.40

Finding the Fourth Proportional to 14,212.88, 19,612.68 and 7,924.40

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Solution

The fourth proportional to 14,212.88, 19,612.68 and 7,924.40 is: 10,935.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,212.88 : 19,612.68 = 7,924.40 : x
  2. Step 2: Convert to fraction form
    14,212.88/19,612.68 = 7,924.40/x
  3. Step 3: Cross multiply
    14,212.88x = 19,612.68 × 7,924.40
  4. Step 4: Simplify right side
    14,212.88x = 155,418,721.39
  5. Step 5: Solve for x
    x = 155,418,721.39/14,212.88
  6. Step 6: Final answer
    x = 10,935.06

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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.