Home / 18,861.93-26,025.86-12,816.95

Finding the Fourth Proportional to 18,861.93, 26,025.86 and 12,816.95

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Solution

The fourth proportional to 18,861.93, 26,025.86 and 12,816.95 is: 17,684.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,861.93 : 26,025.86 = 12,816.95 : x
  2. Step 2: Convert to fraction form
    18,861.93/26,025.86 = 12,816.95/x
  3. Step 3: Cross multiply
    18,861.93x = 26,025.86 × 12,816.95
  4. Step 4: Simplify right side
    18,861.93x = 333,572,122.54
  5. Step 5: Solve for x
    x = 333,572,122.54/18,861.93
  6. Step 6: Final answer
    x = 17,684.94

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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.