Home / 19,388.03-26,755.73-11,429.78

Finding the Fourth Proportional to 19,388.03, 26,755.73 and 11,429.78

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Solution

The fourth proportional to 19,388.03, 26,755.73 and 11,429.78 is: 15,773.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,388.03 : 26,755.73 = 11,429.78 : x
  2. Step 2: Convert to fraction form
    19,388.03/26,755.73 = 11,429.78/x
  3. Step 3: Cross multiply
    19,388.03x = 26,755.73 × 11,429.78
  4. Step 4: Simplify right side
    19,388.03x = 305,811,916.71
  5. Step 5: Solve for x
    x = 305,811,916.71/19,388.03
  6. Step 6: Final answer
    x = 15,773.24

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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.