Home / 19,211.52-26,520.75-13,550.88

Finding the Fourth Proportional to 19,211.52, 26,520.75 and 13,550.88

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Solution

The fourth proportional to 19,211.52, 26,520.75 and 13,550.88 is: 18,706.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.52 : 26,520.75 = 13,550.88 : x
  2. Step 2: Convert to fraction form
    19,211.52/26,520.75 = 13,550.88/x
  3. Step 3: Cross multiply
    19,211.52x = 26,520.75 × 13,550.88
  4. Step 4: Simplify right side
    19,211.52x = 359,379,500.76
  5. Step 5: Solve for x
    x = 359,379,500.76/19,211.52
  6. Step 6: Final answer
    x = 18,706.46

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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.