Home / 19,894.74-27,445.56-12,722.82

Finding the Fourth Proportional to 19,894.74, 27,445.56 and 12,722.82

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Solution

The fourth proportional to 19,894.74, 27,445.56 and 12,722.82 is: 17,551.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,894.74 : 27,445.56 = 12,722.82 : x
  2. Step 2: Convert to fraction form
    19,894.74/27,445.56 = 12,722.82/x
  3. Step 3: Cross multiply
    19,894.74x = 27,445.56 × 12,722.82
  4. Step 4: Simplify right side
    19,894.74x = 349,184,919.68
  5. Step 5: Solve for x
    x = 349,184,919.68/19,894.74
  6. Step 6: Final answer
    x = 17,551.62

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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.