Home / 9,005,992.36-12,430,145.94-8,279,689.60

Finding the Fourth Proportional to 9,005,992.36, 12,430,145.94 and 8,279,689.60

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Solution

The fourth proportional to 9,005,992.36, 12,430,145.94 and 8,279,689.60 is: 11,427,696.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,005,992.36 : 12,430,145.94 = 8,279,689.60 : x
  2. Step 2: Convert to fraction form
    9,005,992.36/12,430,145.94 = 8,279,689.60/x
  3. Step 3: Cross multiply
    9,005,992.36x = 12,430,145.94 × 8,279,689.60
  4. Step 4: Simplify right side
    9,005,992.36x = 102,917,750,065,900.22
  5. Step 5: Solve for x
    x = 102,917,750,065,900.22/9,005,992.36
  6. Step 6: Final answer
    x = 11,427,696.80

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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.