Home / 12,396.50-17,107.54-6,807.86

Finding the Fourth Proportional to 12,396.50, 17,107.54 and 6,807.86

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Solution

The fourth proportional to 12,396.50, 17,107.54 and 6,807.86 is: 9,395.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,396.50 : 17,107.54 = 6,807.86 : x
  2. Step 2: Convert to fraction form
    12,396.50/17,107.54 = 6,807.86/x
  3. Step 3: Cross multiply
    12,396.50x = 17,107.54 × 6,807.86
  4. Step 4: Simplify right side
    12,396.50x = 116,465,737.26
  5. Step 5: Solve for x
    x = 116,465,737.26/12,396.50
  6. Step 6: Final answer
    x = 9,395.05

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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.