Home / 14,187.36-19,576.80-8,216.88

Finding the Fourth Proportional to 14,187.36, 19,576.80 and 8,216.88

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Solution

The fourth proportional to 14,187.36, 19,576.80 and 8,216.88 is: 11,338.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.36 : 19,576.80 = 8,216.88 : x
  2. Step 2: Convert to fraction form
    14,187.36/19,576.80 = 8,216.88/x
  3. Step 3: Cross multiply
    14,187.36x = 19,576.80 × 8,216.88
  4. Step 4: Simplify right side
    14,187.36x = 160,860,216.38
  5. Step 5: Solve for x
    x = 160,860,216.38/14,187.36
  6. Step 6: Final answer
    x = 11,338.28

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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.