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Finding the Fourth Proportional to 6,648.90, 9,955.80 and 5,326.44

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Solution

The fourth proportional to 6,648.90, 9,955.80 and 5,326.44 is: 7,975.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648.90 : 9,955.80 = 5,326.44 : x
  2. Step 2: Convert to fraction form
    6,648.90/9,955.80 = 5,326.44/x
  3. Step 3: Cross multiply
    6,648.90x = 9,955.80 × 5,326.44
  4. Step 4: Simplify right side
    6,648.90x = 53,028,971.35
  5. Step 5: Solve for x
    x = 53,028,971.35/6,648.90
  6. Step 6: Final answer
    x = 7,975.60

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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.