Home / 14,122.80-19,476.60-11,761.20

Finding the Fourth Proportional to 14,122.80, 19,476.60 and 11,761.20

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Solution

The fourth proportional to 14,122.80, 19,476.60 and 11,761.20 is: 16,219.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.80 : 19,476.60 = 11,761.20 : x
  2. Step 2: Convert to fraction form
    14,122.80/19,476.60 = 11,761.20/x
  3. Step 3: Cross multiply
    14,122.80x = 19,476.60 × 11,761.20
  4. Step 4: Simplify right side
    14,122.80x = 229,068,187.92
  5. Step 5: Solve for x
    x = 229,068,187.92/14,122.80
  6. Step 6: Final answer
    x = 16,219.74

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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.