Home / 12,467.90-17,205.45-7,162.58

Finding the Fourth Proportional to 12,467.90, 17,205.45 and 7,162.58

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Solution

The fourth proportional to 12,467.90, 17,205.45 and 7,162.58 is: 9,884.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,467.90 : 17,205.45 = 7,162.58 : x
  2. Step 2: Convert to fraction form
    12,467.90/17,205.45 = 7,162.58/x
  3. Step 3: Cross multiply
    12,467.90x = 17,205.45 × 7,162.58
  4. Step 4: Simplify right side
    12,467.90x = 123,235,412.06
  5. Step 5: Solve for x
    x = 123,235,412.06/12,467.90
  6. Step 6: Final answer
    x = 9,884.22

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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.