Home / 12,317.68-16,998.40-6,728.64

Finding the Fourth Proportional to 12,317.68, 16,998.40 and 6,728.64

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Solution

The fourth proportional to 12,317.68, 16,998.40 and 6,728.64 is: 9,285.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,317.68 : 16,998.40 = 6,728.64 : x
  2. Step 2: Convert to fraction form
    12,317.68/16,998.40 = 6,728.64/x
  3. Step 3: Cross multiply
    12,317.68x = 16,998.40 × 6,728.64
  4. Step 4: Simplify right side
    12,317.68x = 114,376,114.18
  5. Step 5: Solve for x
    x = 114,376,114.18/12,317.68
  6. Step 6: Final answer
    x = 9,285.52

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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.