Home / 18,741.94-28,122.08-8,210.53

Finding the Fourth Proportional to 18,741.94, 28,122.08 and 8,210.53

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Solution

The fourth proportional to 18,741.94, 28,122.08 and 8,210.53 is: 12,319.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,741.94 : 28,122.08 = 8,210.53 : x
  2. Step 2: Convert to fraction form
    18,741.94/28,122.08 = 8,210.53/x
  3. Step 3: Cross multiply
    18,741.94x = 28,122.08 × 8,210.53
  4. Step 4: Simplify right side
    18,741.94x = 230,897,020.37
  5. Step 5: Solve for x
    x = 230,897,020.37/18,741.94
  6. Step 6: Final answer
    x = 12,319.80

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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.