Home / 14,042.67-19,378.72-8,074.36

Finding the Fourth Proportional to 14,042.67, 19,378.72 and 8,074.36

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Solution

The fourth proportional to 14,042.67, 19,378.72 and 8,074.36 is: 11,142.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,042.67 : 19,378.72 = 8,074.36 : x
  2. Step 2: Convert to fraction form
    14,042.67/19,378.72 = 8,074.36/x
  3. Step 3: Cross multiply
    14,042.67x = 19,378.72 × 8,074.36
  4. Step 4: Simplify right side
    14,042.67x = 156,470,718.72
  5. Step 5: Solve for x
    x = 156,470,718.72/14,042.67
  6. Step 6: Final answer
    x = 11,142.52

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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.