Home / 14,121.20-19,507.54-11,284.86

Finding the Fourth Proportional to 14,121.20, 19,507.54 and 11,284.86

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Solution

The fourth proportional to 14,121.20, 19,507.54 and 11,284.86 is: 15,589.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.20 : 19,507.54 = 11,284.86 : x
  2. Step 2: Convert to fraction form
    14,121.20/19,507.54 = 11,284.86/x
  3. Step 3: Cross multiply
    14,121.20x = 19,507.54 × 11,284.86
  4. Step 4: Simplify right side
    14,121.20x = 220,139,829.63
  5. Step 5: Solve for x
    x = 220,139,829.63/14,121.20
  6. Step 6: Final answer
    x = 15,589.31

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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.