Home / 12,282.91-16,950.48-6,978.03

Finding the Fourth Proportional to 12,282.91, 16,950.48 and 6,978.03

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Solution

The fourth proportional to 12,282.91, 16,950.48 and 6,978.03 is: 9,629.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.91 : 16,950.48 = 6,978.03 : x
  2. Step 2: Convert to fraction form
    12,282.91/16,950.48 = 6,978.03/x
  3. Step 3: Cross multiply
    12,282.91x = 16,950.48 × 6,978.03
  4. Step 4: Simplify right side
    12,282.91x = 118,280,957.95
  5. Step 5: Solve for x
    x = 118,280,957.95/12,282.91
  6. Step 6: Final answer
    x = 9,629.72

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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.