Home / 7,677.36-11,509.38-3,977.64

Finding the Fourth Proportional to 7,677.36, 11,509.38 and 3,977.64

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Solution

The fourth proportional to 7,677.36, 11,509.38 and 3,977.64 is: 5,963.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,677.36 : 11,509.38 = 3,977.64 : x
  2. Step 2: Convert to fraction form
    7,677.36/11,509.38 = 3,977.64/x
  3. Step 3: Cross multiply
    7,677.36x = 11,509.38 × 3,977.64
  4. Step 4: Simplify right side
    7,677.36x = 45,780,170.26
  5. Step 5: Solve for x
    x = 45,780,170.26/7,677.36
  6. Step 6: Final answer
    x = 5,963.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.