Home / 13,165.86-19,762.44-8,813.72

Finding the Fourth Proportional to 13,165.86, 19,762.44 and 8,813.72

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Solution

The fourth proportional to 13,165.86, 19,762.44 and 8,813.72 is: 13,229.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165.86 : 19,762.44 = 8,813.72 : x
  2. Step 2: Convert to fraction form
    13,165.86/19,762.44 = 8,813.72/x
  3. Step 3: Cross multiply
    13,165.86x = 19,762.44 × 8,813.72
  4. Step 4: Simplify right side
    13,165.86x = 174,180,612.68
  5. Step 5: Solve for x
    x = 174,180,612.68/13,165.86
  6. Step 6: Final answer
    x = 13,229.72

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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.