Home / 19,900.86-27,467.11-11,408.68

Finding the Fourth Proportional to 19,900.86, 27,467.11 and 11,408.68

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Solution

The fourth proportional to 19,900.86, 27,467.11 and 11,408.68 is: 15,746.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,900.86 : 27,467.11 = 11,408.68 : x
  2. Step 2: Convert to fraction form
    19,900.86/27,467.11 = 11,408.68/x
  3. Step 3: Cross multiply
    19,900.86x = 27,467.11 × 11,408.68
  4. Step 4: Simplify right side
    19,900.86x = 313,363,468.51
  5. Step 5: Solve for x
    x = 313,363,468.51/19,900.86
  6. Step 6: Final answer
    x = 15,746.23

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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.