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Finding the Fourth Proportional to 6,810.12, 9,412.74 and 6,285.24

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Solution

The fourth proportional to 6,810.12, 9,412.74 and 6,285.24 is: 8,687.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,810.12 : 9,412.74 = 6,285.24 : x
  2. Step 2: Convert to fraction form
    6,810.12/9,412.74 = 6,285.24/x
  3. Step 3: Cross multiply
    6,810.12x = 9,412.74 × 6,285.24
  4. Step 4: Simplify right side
    6,810.12x = 59,161,329.96
  5. Step 5: Solve for x
    x = 59,161,329.96/6,810.12
  6. Step 6: Final answer
    x = 8,687.27

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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.