Home / 19,109.70-26,376.96-12,745.53

Finding the Fourth Proportional to 19,109.70, 26,376.96 and 12,745.53

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Solution

The fourth proportional to 19,109.70, 26,376.96 and 12,745.53 is: 17,592.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,109.70 : 26,376.96 = 12,745.53 : x
  2. Step 2: Convert to fraction form
    19,109.70/26,376.96 = 12,745.53/x
  3. Step 3: Cross multiply
    19,109.70x = 26,376.96 × 12,745.53
  4. Step 4: Simplify right side
    19,109.70x = 336,188,334.99
  5. Step 5: Solve for x
    x = 336,188,334.99/19,109.70
  6. Step 6: Final answer
    x = 17,592.55

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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.