Home / 12,219.60-16,862.59-6,914.54

Finding the Fourth Proportional to 12,219.60, 16,862.59 and 6,914.54

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Solution

The fourth proportional to 12,219.60, 16,862.59 and 6,914.54 is: 9,541.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.60 : 16,862.59 = 6,914.54 : x
  2. Step 2: Convert to fraction form
    12,219.60/16,862.59 = 6,914.54/x
  3. Step 3: Cross multiply
    12,219.60x = 16,862.59 × 6,914.54
  4. Step 4: Simplify right side
    12,219.60x = 116,597,103.86
  5. Step 5: Solve for x
    x = 116,597,103.86/12,219.60
  6. Step 6: Final answer
    x = 9,541.81

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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.