Home / 19,354.50-28,976.67-12,760.56

Finding the Fourth Proportional to 19,354.50, 28,976.67 and 12,760.56

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Solution

The fourth proportional to 19,354.50, 28,976.67 and 12,760.56 is: 19,104.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,354.50 : 28,976.67 = 12,760.56 : x
  2. Step 2: Convert to fraction form
    19,354.50/28,976.67 = 12,760.56/x
  3. Step 3: Cross multiply
    19,354.50x = 28,976.67 × 12,760.56
  4. Step 4: Simplify right side
    19,354.50x = 369,758,536.14
  5. Step 5: Solve for x
    x = 369,758,536.14/19,354.50
  6. Step 6: Final answer
    x = 19,104.53

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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.