Home / 18,969.74-26,166.02-11,517.74

Finding the Fourth Proportional to 18,969.74, 26,166.02 and 11,517.74

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Solution

The fourth proportional to 18,969.74, 26,166.02 and 11,517.74 is: 15,887.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,969.74 : 26,166.02 = 11,517.74 : x
  2. Step 2: Convert to fraction form
    18,969.74/26,166.02 = 11,517.74/x
  3. Step 3: Cross multiply
    18,969.74x = 26,166.02 × 11,517.74
  4. Step 4: Simplify right side
    18,969.74x = 301,373,415.19
  5. Step 5: Solve for x
    x = 301,373,415.19/18,969.74
  6. Step 6: Final answer
    x = 15,887.06

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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.