Home / 7,117.20-10,683.90-4,197.15

Finding the Fourth Proportional to 7,117.20, 10,683.90 and 4,197.15

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Solution

The fourth proportional to 7,117.20, 10,683.90 and 4,197.15 is: 6,300.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.20 : 10,683.90 = 4,197.15 : x
  2. Step 2: Convert to fraction form
    7,117.20/10,683.90 = 4,197.15/x
  3. Step 3: Cross multiply
    7,117.20x = 10,683.90 × 4,197.15
  4. Step 4: Simplify right side
    7,117.20x = 44,841,930.89
  5. Step 5: Solve for x
    x = 44,841,930.89/7,117.20
  6. Step 6: Final answer
    x = 6,300.50

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Half scale
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Double scale
Find fourth proportional to 7,118.20, 10,685.40 and 4,198.15
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.