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Finding the Fourth Proportional to 6,751.95, 9,348.80 and 6,406.35

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Solution

The fourth proportional to 6,751.95, 9,348.80 and 6,406.35 is: 8,870.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,751.95 : 9,348.80 = 6,406.35 : x
  2. Step 2: Convert to fraction form
    6,751.95/9,348.80 = 6,406.35/x
  3. Step 3: Cross multiply
    6,751.95x = 9,348.80 × 6,406.35
  4. Step 4: Simplify right side
    6,751.95x = 59,891,652.85
  5. Step 5: Solve for x
    x = 59,891,652.85/6,751.95
  6. Step 6: Final answer
    x = 8,870.27

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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.