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Finding the Fourth Proportional to 9,959.54, 13,739.45 and 6,181.31

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Solution

The fourth proportional to 9,959.54, 13,739.45 and 6,181.31 is: 8,527.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,959.54 : 13,739.45 = 6,181.31 : x
  2. Step 2: Convert to fraction form
    9,959.54/13,739.45 = 6,181.31/x
  3. Step 3: Cross multiply
    9,959.54x = 13,739.45 × 6,181.31
  4. Step 4: Simplify right side
    9,959.54x = 84,927,700.08
  5. Step 5: Solve for x
    x = 84,927,700.08/9,959.54
  6. Step 6: Final answer
    x = 8,527.28

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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.