Home / 6,976.99-10,420.33-6,317.55

Finding the Fourth Proportional to 6,976.99, 10,420.33 and 6,317.55

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Solution

The fourth proportional to 6,976.99, 10,420.33 and 6,317.55 is: 9,435.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,976.99 : 10,420.33 = 6,317.55 : x
  2. Step 2: Convert to fraction form
    6,976.99/10,420.33 = 6,317.55/x
  3. Step 3: Cross multiply
    6,976.99x = 10,420.33 × 6,317.55
  4. Step 4: Simplify right side
    6,976.99x = 65,830,918.38
  5. Step 5: Solve for x
    x = 65,830,918.38/6,976.99
  6. Step 6: Final answer
    x = 9,435.43

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.