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Finding the Fourth Proportional to 9,993.15, 13,794.99 and 6,458.10

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Solution

The fourth proportional to 9,993.15, 13,794.99 and 6,458.10 is: 8,915.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.15 : 13,794.99 = 6,458.10 : x
  2. Step 2: Convert to fraction form
    9,993.15/13,794.99 = 6,458.10/x
  3. Step 3: Cross multiply
    9,993.15x = 13,794.99 × 6,458.10
  4. Step 4: Simplify right side
    9,993.15x = 89,089,424.92
  5. Step 5: Solve for x
    x = 89,089,424.92/9,993.15
  6. Step 6: Final answer
    x = 8,915.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.