Home / 19,463.79-26,858.48-12,738.77

Finding the Fourth Proportional to 19,463.79, 26,858.48 and 12,738.77

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Solution

The fourth proportional to 19,463.79, 26,858.48 and 12,738.77 is: 17,578.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,463.79 : 26,858.48 = 12,738.77 : x
  2. Step 2: Convert to fraction form
    19,463.79/26,858.48 = 12,738.77/x
  3. Step 3: Cross multiply
    19,463.79x = 26,858.48 × 12,738.77
  4. Step 4: Simplify right side
    19,463.79x = 342,143,801.28
  5. Step 5: Solve for x
    x = 342,143,801.28/19,463.79
  6. Step 6: Final answer
    x = 17,578.48

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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.