Home / 7,975.64-11,006.62-4,390.78

Finding the Fourth Proportional to 7,975.64, 11,006.62 and 4,390.78

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Solution

The fourth proportional to 7,975.64, 11,006.62 and 4,390.78 is: 6,059.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975.64 : 11,006.62 = 4,390.78 : x
  2. Step 2: Convert to fraction form
    7,975.64/11,006.62 = 4,390.78/x
  3. Step 3: Cross multiply
    7,975.64x = 11,006.62 × 4,390.78
  4. Step 4: Simplify right side
    7,975.64x = 48,327,646.96
  5. Step 5: Solve for x
    x = 48,327,646.96/7,975.64
  6. Step 6: Final answer
    x = 6,059.41

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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.