Home / 14,104.64-21,165.75-12,790.77

Finding the Fourth Proportional to 14,104.64, 21,165.75 and 12,790.77

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Solution

The fourth proportional to 14,104.64, 21,165.75 and 12,790.77 is: 19,194.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,104.64 : 21,165.75 = 12,790.77 : x
  2. Step 2: Convert to fraction form
    14,104.64/21,165.75 = 12,790.77/x
  3. Step 3: Cross multiply
    14,104.64x = 21,165.75 × 12,790.77
  4. Step 4: Simplify right side
    14,104.64x = 270,726,240.13
  5. Step 5: Solve for x
    x = 270,726,240.13/14,104.64
  6. Step 6: Final answer
    x = 19,194.12

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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.