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Finding the Fourth Proportional to 6,887.63, 10,331.54 and 1,693.50

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Solution

The fourth proportional to 6,887.63, 10,331.54 and 1,693.50 is: 2,540.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887.63 : 10,331.54 = 1,693.50 : x
  2. Step 2: Convert to fraction form
    6,887.63/10,331.54 = 1,693.50/x
  3. Step 3: Cross multiply
    6,887.63x = 10,331.54 × 1,693.50
  4. Step 4: Simplify right side
    6,887.63x = 17,496,454.52
  5. Step 5: Solve for x
    x = 17,496,454.52/6,887.63
  6. Step 6: Final answer
    x = 2,540.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.