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Finding the Fourth Proportional to 7,907.08, 10,903.86 and 6,138.04

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Solution

The fourth proportional to 7,907.08, 10,903.86 and 6,138.04 is: 8,464.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.08 : 10,903.86 = 6,138.04 : x
  2. Step 2: Convert to fraction form
    7,907.08/10,903.86 = 6,138.04/x
  3. Step 3: Cross multiply
    7,907.08x = 10,903.86 × 6,138.04
  4. Step 4: Simplify right side
    7,907.08x = 66,928,328.83
  5. Step 5: Solve for x
    x = 66,928,328.83/7,907.08
  6. Step 6: Final answer
    x = 8,464.35

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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.