Home / 15,284.19-21,092.73-8,914.86

Finding the Fourth Proportional to 15,284.19, 21,092.73 and 8,914.86

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Solution

The fourth proportional to 15,284.19, 21,092.73 and 8,914.86 is: 12,302.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,284.19 : 21,092.73 = 8,914.86 : x
  2. Step 2: Convert to fraction form
    15,284.19/21,092.73 = 8,914.86/x
  3. Step 3: Cross multiply
    15,284.19x = 21,092.73 × 8,914.86
  4. Step 4: Simplify right side
    15,284.19x = 188,038,734.97
  5. Step 5: Solve for x
    x = 188,038,734.97/15,284.19
  6. Step 6: Final answer
    x = 12,302.83

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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.