Home / 18,850.56-28,283.84-9,485.68

Finding the Fourth Proportional to 18,850.56, 28,283.84 and 9,485.68

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Solution

The fourth proportional to 18,850.56, 28,283.84 and 9,485.68 is: 14,232.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,850.56 : 28,283.84 = 9,485.68 : x
  2. Step 2: Convert to fraction form
    18,850.56/28,283.84 = 9,485.68/x
  3. Step 3: Cross multiply
    18,850.56x = 28,283.84 × 9,485.68
  4. Step 4: Simplify right side
    18,850.56x = 268,291,455.41
  5. Step 5: Solve for x
    x = 268,291,455.41/18,850.56
  6. Step 6: Final answer
    x = 14,232.55

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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.