Home / 11,722.16-16,176.60-6,416.99

Finding the Fourth Proportional to 11,722.16, 16,176.60 and 6,416.99

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Solution

The fourth proportional to 11,722.16, 16,176.60 and 6,416.99 is: 8,855.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.16 : 16,176.60 = 6,416.99 : x
  2. Step 2: Convert to fraction form
    11,722.16/16,176.60 = 6,416.99/x
  3. Step 3: Cross multiply
    11,722.16x = 16,176.60 × 6,416.99
  4. Step 4: Simplify right side
    11,722.16x = 103,805,080.43
  5. Step 5: Solve for x
    x = 103,805,080.43/11,722.16
  6. Step 6: Final answer
    x = 8,855.46

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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.