Home / 19,105.66-26,374.71-12,742.84

Finding the Fourth Proportional to 19,105.66, 26,374.71 and 12,742.84

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Solution

The fourth proportional to 19,105.66, 26,374.71 and 12,742.84 is: 17,591.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.66 : 26,374.71 = 12,742.84 : x
  2. Step 2: Convert to fraction form
    19,105.66/26,374.71 = 12,742.84/x
  3. Step 3: Cross multiply
    19,105.66x = 26,374.71 × 12,742.84
  4. Step 4: Simplify right side
    19,105.66x = 336,088,709.58
  5. Step 5: Solve for x
    x = 336,088,709.58/19,105.66
  6. Step 6: Final answer
    x = 17,591.05

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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.