Home / 11,820.06-16,311.02-6,513.84

Finding the Fourth Proportional to 11,820.06, 16,311.02 and 6,513.84

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Solution

The fourth proportional to 11,820.06, 16,311.02 and 6,513.84 is: 8,988.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.06 : 16,311.02 = 6,513.84 : x
  2. Step 2: Convert to fraction form
    11,820.06/16,311.02 = 6,513.84/x
  3. Step 3: Cross multiply
    11,820.06x = 16,311.02 × 6,513.84
  4. Step 4: Simplify right side
    11,820.06x = 106,247,374.52
  5. Step 5: Solve for x
    x = 106,247,374.52/11,820.06
  6. Step 6: Final answer
    x = 8,988.73

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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.