Home / 8,140.53-12,210.83-1,984.53

Finding the Fourth Proportional to 8,140.53, 12,210.83 and 1,984.53

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Solution

The fourth proportional to 8,140.53, 12,210.83 and 1,984.53 is: 2,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.53 : 12,210.83 = 1,984.53 : x
  2. Step 2: Convert to fraction form
    8,140.53/12,210.83 = 1,984.53/x
  3. Step 3: Cross multiply
    8,140.53x = 12,210.83 × 1,984.53
  4. Step 4: Simplify right side
    8,140.53x = 24,232,748.54
  5. Step 5: Solve for x
    x = 24,232,748.54/8,140.53
  6. Step 6: Final answer
    x = 2,976.80

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Similar ratio
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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.