Home / 7,977.56-11,008.96-4,620.38

Finding the Fourth Proportional to 7,977.56, 11,008.96 and 4,620.38

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Solution

The fourth proportional to 7,977.56, 11,008.96 and 4,620.38 is: 6,376.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.56 : 11,008.96 = 4,620.38 : x
  2. Step 2: Convert to fraction form
    7,977.56/11,008.96 = 4,620.38/x
  3. Step 3: Cross multiply
    7,977.56x = 11,008.96 × 4,620.38
  4. Step 4: Simplify right side
    7,977.56x = 50,865,578.60
  5. Step 5: Solve for x
    x = 50,865,578.60/7,977.56
  6. Step 6: Final answer
    x = 6,376.08

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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.