Home / 13,924.63-19,215.74-7,874.78

Finding the Fourth Proportional to 13,924.63, 19,215.74 and 7,874.78

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Solution

The fourth proportional to 13,924.63, 19,215.74 and 7,874.78 is: 10,867.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,924.63 : 19,215.74 = 7,874.78 : x
  2. Step 2: Convert to fraction form
    13,924.63/19,215.74 = 7,874.78/x
  3. Step 3: Cross multiply
    13,924.63x = 19,215.74 × 7,874.78
  4. Step 4: Simplify right side
    13,924.63x = 151,319,725.04
  5. Step 5: Solve for x
    x = 151,319,725.04/13,924.63
  6. Step 6: Final answer
    x = 10,867.06

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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.