Home / 11,688.02-16,129.38-6,382.84

Finding the Fourth Proportional to 11,688.02, 16,129.38 and 6,382.84

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Solution

The fourth proportional to 11,688.02, 16,129.38 and 6,382.84 is: 8,808.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.02 : 16,129.38 = 6,382.84 : x
  2. Step 2: Convert to fraction form
    11,688.02/16,129.38 = 6,382.84/x
  3. Step 3: Cross multiply
    11,688.02x = 16,129.38 × 6,382.84
  4. Step 4: Simplify right side
    11,688.02x = 102,951,171.19
  5. Step 5: Solve for x
    x = 102,951,171.19/11,688.02
  6. Step 6: Final answer
    x = 8,808.26

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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.