Home / 11,884.20-16,431.51-10,407.98

Finding the Fourth Proportional to 11,884.20, 16,431.51 and 10,407.98

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Solution

The fourth proportional to 11,884.20, 16,431.51 and 10,407.98 is: 14,390.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,884.20 : 16,431.51 = 10,407.98 : x
  2. Step 2: Convert to fraction form
    11,884.20/16,431.51 = 10,407.98/x
  3. Step 3: Cross multiply
    11,884.20x = 16,431.51 × 10,407.98
  4. Step 4: Simplify right side
    11,884.20x = 171,018,745.29
  5. Step 5: Solve for x
    x = 171,018,745.29/11,884.20
  6. Step 6: Final answer
    x = 14,390.43

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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.