Home / 8,140.50-12,210.75-1,984.50

Finding the Fourth Proportional to 8,140.50, 12,210.75 and 1,984.50

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Solution

The fourth proportional to 8,140.50, 12,210.75 and 1,984.50 is: 2,976.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.50 : 12,210.75 = 1,984.50 : x
  2. Step 2: Convert to fraction form
    8,140.50/12,210.75 = 1,984.50/x
  3. Step 3: Cross multiply
    8,140.50x = 12,210.75 × 1,984.50
  4. Step 4: Simplify right side
    8,140.50x = 24,232,233.38
  5. Step 5: Solve for x
    x = 24,232,233.38/8,140.50
  6. Step 6: Final answer
    x = 2,976.75

Related Problems

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Half scale
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Double scale
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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.