Home / 9,239.36-12,724.40-8,646.44

Finding the Fourth Proportional to 9,239.36, 12,724.40 and 8,646.44

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Solution

The fourth proportional to 9,239.36, 12,724.40 and 8,646.44 is: 11,907.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,239.36 : 12,724.40 = 8,646.44 : x
  2. Step 2: Convert to fraction form
    9,239.36/12,724.40 = 8,646.44/x
  3. Step 3: Cross multiply
    9,239.36x = 12,724.40 × 8,646.44
  4. Step 4: Simplify right side
    9,239.36x = 110,020,761.14
  5. Step 5: Solve for x
    x = 110,020,761.14/9,239.36
  6. Step 6: Final answer
    x = 11,907.83

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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.