Home / 13,826.10-20,731.05-9,448.86

Finding the Fourth Proportional to 13,826.10, 20,731.05 and 9,448.86

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Solution

The fourth proportional to 13,826.10, 20,731.05 and 9,448.86 is: 14,167.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.10 : 20,731.05 = 9,448.86 : x
  2. Step 2: Convert to fraction form
    13,826.10/20,731.05 = 9,448.86/x
  3. Step 3: Cross multiply
    13,826.10x = 20,731.05 × 9,448.86
  4. Step 4: Simplify right side
    13,826.10x = 195,884,789.10
  5. Step 5: Solve for x
    x = 195,884,789.10/13,826.10
  6. Step 6: Final answer
    x = 14,167.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.