Home / 11,583.56-15,985.32-6,278.42

Finding the Fourth Proportional to 11,583.56, 15,985.32 and 6,278.42

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Solution

The fourth proportional to 11,583.56, 15,985.32 and 6,278.42 is: 8,664.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,583.56 : 15,985.32 = 6,278.42 : x
  2. Step 2: Convert to fraction form
    11,583.56/15,985.32 = 6,278.42/x
  3. Step 3: Cross multiply
    11,583.56x = 15,985.32 × 6,278.42
  4. Step 4: Simplify right side
    11,583.56x = 100,362,552.79
  5. Step 5: Solve for x
    x = 100,362,552.79/11,583.56
  6. Step 6: Final answer
    x = 8,664.22

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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.