Home / 14,745.86-20,340.27-13,761.71

Finding the Fourth Proportional to 14,745.86, 20,340.27 and 13,761.71

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Solution

The fourth proportional to 14,745.86, 20,340.27 and 13,761.71 is: 18,982.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,745.86 : 20,340.27 = 13,761.71 : x
  2. Step 2: Convert to fraction form
    14,745.86/20,340.27 = 13,761.71/x
  3. Step 3: Cross multiply
    14,745.86x = 20,340.27 × 13,761.71
  4. Step 4: Simplify right side
    14,745.86x = 279,916,795.36
  5. Step 5: Solve for x
    x = 279,916,795.36/14,745.86
  6. Step 6: Final answer
    x = 18,982.74

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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.