Home / 13,635.75-20,423.64-11,268.93

Finding the Fourth Proportional to 13,635.75, 20,423.64 and 11,268.93

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Solution

The fourth proportional to 13,635.75, 20,423.64 and 11,268.93 is: 16,878.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.75 : 20,423.64 = 11,268.93 : x
  2. Step 2: Convert to fraction form
    13,635.75/20,423.64 = 11,268.93/x
  3. Step 3: Cross multiply
    13,635.75x = 20,423.64 × 11,268.93
  4. Step 4: Simplify right side
    13,635.75x = 230,152,569.51
  5. Step 5: Solve for x
    x = 230,152,569.51/13,635.75
  6. Step 6: Final answer
    x = 16,878.61

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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.