Home / 11,823.81-16,316.63-6,446.30

Finding the Fourth Proportional to 11,823.81, 16,316.63 and 6,446.30

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Solution

The fourth proportional to 11,823.81, 16,316.63 and 6,446.30 is: 8,895.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,823.81 : 16,316.63 = 6,446.30 : x
  2. Step 2: Convert to fraction form
    11,823.81/16,316.63 = 6,446.30/x
  3. Step 3: Cross multiply
    11,823.81x = 16,316.63 × 6,446.30
  4. Step 4: Simplify right side
    11,823.81x = 105,181,891.97
  5. Step 5: Solve for x
    x = 105,181,891.97/11,823.81
  6. Step 6: Final answer
    x = 8,895.77

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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.