Home / 13,887.29-20,833.37-8,961.68

Finding the Fourth Proportional to 13,887.29, 20,833.37 and 8,961.68

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Solution

The fourth proportional to 13,887.29, 20,833.37 and 8,961.68 is: 13,444.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.29 : 20,833.37 = 8,961.68 : x
  2. Step 2: Convert to fraction form
    13,887.29/20,833.37 = 8,961.68/x
  3. Step 3: Cross multiply
    13,887.29x = 20,833.37 × 8,961.68
  4. Step 4: Simplify right side
    13,887.29x = 186,701,995.26
  5. Step 5: Solve for x
    x = 186,701,995.26/13,887.29
  6. Step 6: Final answer
    x = 13,444.09

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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.