Home / 18,017.36-26,989.80-8,984.21

Finding the Fourth Proportional to 18,017.36, 26,989.80 and 8,984.21

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Solution

The fourth proportional to 18,017.36, 26,989.80 and 8,984.21 is: 13,458.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,017.36 : 26,989.80 = 8,984.21 : x
  2. Step 2: Convert to fraction form
    18,017.36/26,989.80 = 8,984.21/x
  3. Step 3: Cross multiply
    18,017.36x = 26,989.80 × 8,984.21
  4. Step 4: Simplify right side
    18,017.36x = 242,481,896.11
  5. Step 5: Solve for x
    x = 242,481,896.11/18,017.36
  6. Step 6: Final answer
    x = 13,458.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.