Home / 11,722.36-16,176.18-6,417.28

Finding the Fourth Proportional to 11,722.36, 16,176.18 and 6,417.28

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Solution

The fourth proportional to 11,722.36, 16,176.18 and 6,417.28 is: 8,855.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.36 : 16,176.18 = 6,417.28 : x
  2. Step 2: Convert to fraction form
    11,722.36/16,176.18 = 6,417.28/x
  3. Step 3: Cross multiply
    11,722.36x = 16,176.18 × 6,417.28
  4. Step 4: Simplify right side
    11,722.36x = 103,807,076.39
  5. Step 5: Solve for x
    x = 103,807,076.39/11,722.36
  6. Step 6: Final answer
    x = 8,855.48

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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.