Home / 12,557.16-17,331.32-8,308.44

Finding the Fourth Proportional to 12,557.16, 17,331.32 and 8,308.44

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Solution

The fourth proportional to 12,557.16, 17,331.32 and 8,308.44 is: 11,467.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557.16 : 17,331.32 = 8,308.44 : x
  2. Step 2: Convert to fraction form
    12,557.16/17,331.32 = 8,308.44/x
  3. Step 3: Cross multiply
    12,557.16x = 17,331.32 × 8,308.44
  4. Step 4: Simplify right side
    12,557.16x = 143,996,232.34
  5. Step 5: Solve for x
    x = 143,996,232.34/12,557.16
  6. Step 6: Final answer
    x = 11,467.26

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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.