Home / 14,378.94-19,842.18-8,091.72

Finding the Fourth Proportional to 14,378.94, 19,842.18 and 8,091.72

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Solution

The fourth proportional to 14,378.94, 19,842.18 and 8,091.72 is: 11,166.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,378.94 : 19,842.18 = 8,091.72 : x
  2. Step 2: Convert to fraction form
    14,378.94/19,842.18 = 8,091.72/x
  3. Step 3: Cross multiply
    14,378.94x = 19,842.18 × 8,091.72
  4. Step 4: Simplify right side
    14,378.94x = 160,557,364.75
  5. Step 5: Solve for x
    x = 160,557,364.75/14,378.94
  6. Step 6: Final answer
    x = 11,166.15

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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.