Home / 12,566.36-17,340.90-6,977

Finding the Fourth Proportional to 12,566.36, 17,340.90 and 6,977

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Solution

The fourth proportional to 12,566.36, 17,340.90 and 6,977 is: 9,627.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,566.36 : 17,340.90 = 6,977 : x
  2. Step 2: Convert to fraction form
    12,566.36/17,340.90 = 6,977/x
  3. Step 3: Cross multiply
    12,566.36x = 17,340.90 × 6,977
  4. Step 4: Simplify right side
    12,566.36x = 120,987,459.30
  5. Step 5: Solve for x
    x = 120,987,459.30/12,566.36
  6. Step 6: Final answer
    x = 9,627.88

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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.