Home / 11,190.51-15,442.80-6,411.33

Finding the Fourth Proportional to 11,190.51, 15,442.80 and 6,411.33

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Solution

The fourth proportional to 11,190.51, 15,442.80 and 6,411.33 is: 8,847.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.51 : 15,442.80 = 6,411.33 : x
  2. Step 2: Convert to fraction form
    11,190.51/15,442.80 = 6,411.33/x
  3. Step 3: Cross multiply
    11,190.51x = 15,442.80 × 6,411.33
  4. Step 4: Simplify right side
    11,190.51x = 99,008,886.92
  5. Step 5: Solve for x
    x = 99,008,886.92/11,190.51
  6. Step 6: Final answer
    x = 8,847.58

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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.