Home / 15,111.54-20,847.95-8,736.96

Finding the Fourth Proportional to 15,111.54, 20,847.95 and 8,736.96

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Solution

The fourth proportional to 15,111.54, 20,847.95 and 8,736.96 is: 12,053.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,111.54 : 20,847.95 = 8,736.96 : x
  2. Step 2: Convert to fraction form
    15,111.54/20,847.95 = 8,736.96/x
  3. Step 3: Cross multiply
    15,111.54x = 20,847.95 × 8,736.96
  4. Step 4: Simplify right side
    15,111.54x = 182,147,705.23
  5. Step 5: Solve for x
    x = 182,147,705.23/15,111.54
  6. Step 6: Final answer
    x = 12,053.55

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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.