Home / 10,785.74-16,187.81-4,216.55

Finding the Fourth Proportional to 10,785.74, 16,187.81 and 4,216.55

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Solution

The fourth proportional to 10,785.74, 16,187.81 and 4,216.55 is: 6,328.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,785.74 : 16,187.81 = 4,216.55 : x
  2. Step 2: Convert to fraction form
    10,785.74/16,187.81 = 4,216.55/x
  3. Step 3: Cross multiply
    10,785.74x = 16,187.81 × 4,216.55
  4. Step 4: Simplify right side
    10,785.74x = 68,256,608.23
  5. Step 5: Solve for x
    x = 68,256,608.23/10,785.74
  6. Step 6: Final answer
    x = 6,328.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.