Home / 13,633.05-18,813.29-8,917.23

Finding the Fourth Proportional to 13,633.05, 18,813.29 and 8,917.23

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Solution

The fourth proportional to 13,633.05, 18,813.29 and 8,917.23 is: 12,305.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633.05 : 18,813.29 = 8,917.23 : x
  2. Step 2: Convert to fraction form
    13,633.05/18,813.29 = 8,917.23/x
  3. Step 3: Cross multiply
    13,633.05x = 18,813.29 × 8,917.23
  4. Step 4: Simplify right side
    13,633.05x = 167,762,389.40
  5. Step 5: Solve for x
    x = 167,762,389.40/13,633.05
  6. Step 6: Final answer
    x = 12,305.57

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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.