Home / 11,823.31-16,315.94-6,445.80

Finding the Fourth Proportional to 11,823.31, 16,315.94 and 6,445.80

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Solution

The fourth proportional to 11,823.31, 16,315.94 and 6,445.80 is: 8,895.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,823.31 : 16,315.94 = 6,445.80 : x
  2. Step 2: Convert to fraction form
    11,823.31/16,315.94 = 6,445.80/x
  3. Step 3: Cross multiply
    11,823.31x = 16,315.94 × 6,445.80
  4. Step 4: Simplify right side
    11,823.31x = 105,169,286.05
  5. Step 5: Solve for x
    x = 105,169,286.05/11,823.31
  6. Step 6: Final answer
    x = 8,895.08

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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.