Home / 11,821.95-16,306.21-8,629.64

Finding the Fourth Proportional to 11,821.95, 16,306.21 and 8,629.64

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Solution

The fourth proportional to 11,821.95, 16,306.21 and 8,629.64 is: 11,903.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.95 : 16,306.21 = 8,629.64 : x
  2. Step 2: Convert to fraction form
    11,821.95/16,306.21 = 8,629.64/x
  3. Step 3: Cross multiply
    11,821.95x = 16,306.21 × 8,629.64
  4. Step 4: Simplify right side
    11,821.95x = 140,716,712.47
  5. Step 5: Solve for x
    x = 140,716,712.47/11,821.95
  6. Step 6: Final answer
    x = 11,903.00

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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.