Home / 12,557.22-17,331.35-8,308.37

Finding the Fourth Proportional to 12,557.22, 17,331.35 and 8,308.37

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Solution

The fourth proportional to 12,557.22, 17,331.35 and 8,308.37 is: 11,467.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557.22 : 17,331.35 = 8,308.37 : x
  2. Step 2: Convert to fraction form
    12,557.22/17,331.35 = 8,308.37/x
  3. Step 3: Cross multiply
    12,557.22x = 17,331.35 × 8,308.37
  4. Step 4: Simplify right side
    12,557.22x = 143,995,202.51
  5. Step 5: Solve for x
    x = 143,995,202.51/12,557.22
  6. Step 6: Final answer
    x = 11,467.12

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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.