Home / 12,283.77-16,951.61-6,978.60

Finding the Fourth Proportional to 12,283.77, 16,951.61 and 6,978.60

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Solution

The fourth proportional to 12,283.77, 16,951.61 and 6,978.60 is: 9,630.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,283.77 : 16,951.61 = 6,978.60 : x
  2. Step 2: Convert to fraction form
    12,283.77/16,951.61 = 6,978.60/x
  3. Step 3: Cross multiply
    12,283.77x = 16,951.61 × 6,978.60
  4. Step 4: Simplify right side
    12,283.77x = 118,298,522.99
  5. Step 5: Solve for x
    x = 118,298,522.99/12,283.77
  6. Step 6: Final answer
    x = 9,630.47

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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.