Home / 11,823.12-16,315.80-6,517.98

Finding the Fourth Proportional to 11,823.12, 16,315.80 and 6,517.98

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Solution

The fourth proportional to 11,823.12, 16,315.80 and 6,517.98 is: 8,994.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,823.12 : 16,315.80 = 6,517.98 : x
  2. Step 2: Convert to fraction form
    11,823.12/16,315.80 = 6,517.98/x
  3. Step 3: Cross multiply
    11,823.12x = 16,315.80 × 6,517.98
  4. Step 4: Simplify right side
    11,823.12x = 106,346,058.08
  5. Step 5: Solve for x
    x = 106,346,058.08/11,823.12
  6. Step 6: Final answer
    x = 8,994.75

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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.