Home / 18,968.61-28,438.83-9,098.49

Finding the Fourth Proportional to 18,968.61, 28,438.83 and 9,098.49

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Solution

The fourth proportional to 18,968.61, 28,438.83 and 9,098.49 is: 13,640.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968.61 : 28,438.83 = 9,098.49 : x
  2. Step 2: Convert to fraction form
    18,968.61/28,438.83 = 9,098.49/x
  3. Step 3: Cross multiply
    18,968.61x = 28,438.83 × 9,098.49
  4. Step 4: Simplify right side
    18,968.61x = 258,750,410.37
  5. Step 5: Solve for x
    x = 258,750,410.37/18,968.61
  6. Step 6: Final answer
    x = 13,640.98

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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.