Home / 11,711.04-16,161.62-6,405.86

Finding the Fourth Proportional to 11,711.04, 16,161.62 and 6,405.86

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Solution

The fourth proportional to 11,711.04, 16,161.62 and 6,405.86 is: 8,840.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,711.04 : 16,161.62 = 6,405.86 : x
  2. Step 2: Convert to fraction form
    11,711.04/16,161.62 = 6,405.86/x
  3. Step 3: Cross multiply
    11,711.04x = 16,161.62 × 6,405.86
  4. Step 4: Simplify right side
    11,711.04x = 103,529,075.09
  5. Step 5: Solve for x
    x = 103,529,075.09/11,711.04
  6. Step 6: Final answer
    x = 8,840.30

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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.