Home / 13,998.50-19,316.52-8,620.07

Finding the Fourth Proportional to 13,998.50, 19,316.52 and 8,620.07

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Solution

The fourth proportional to 13,998.50, 19,316.52 and 8,620.07 is: 11,894.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.50 : 19,316.52 = 8,620.07 : x
  2. Step 2: Convert to fraction form
    13,998.50/19,316.52 = 8,620.07/x
  3. Step 3: Cross multiply
    13,998.50x = 19,316.52 × 8,620.07
  4. Step 4: Simplify right side
    13,998.50x = 166,509,766.63
  5. Step 5: Solve for x
    x = 166,509,766.63/13,998.50
  6. Step 6: Final answer
    x = 11,894.83

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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.