Home / 19,118.43-26,383.74-10,621.09

Finding the Fourth Proportional to 19,118.43, 26,383.74 and 10,621.09

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Solution

The fourth proportional to 19,118.43, 26,383.74 and 10,621.09 is: 14,657.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118.43 : 26,383.74 = 10,621.09 : x
  2. Step 2: Convert to fraction form
    19,118.43/26,383.74 = 10,621.09/x
  3. Step 3: Cross multiply
    19,118.43x = 26,383.74 × 10,621.09
  4. Step 4: Simplify right side
    19,118.43x = 280,224,077.08
  5. Step 5: Solve for x
    x = 280,224,077.08/19,118.43
  6. Step 6: Final answer
    x = 14,657.27

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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.