Home / 12,645.48-17,445.34-9,282.48

Finding the Fourth Proportional to 12,645.48, 17,445.34 and 9,282.48

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Solution

The fourth proportional to 12,645.48, 17,445.34 and 9,282.48 is: 12,805.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645.48 : 17,445.34 = 9,282.48 : x
  2. Step 2: Convert to fraction form
    12,645.48/17,445.34 = 9,282.48/x
  3. Step 3: Cross multiply
    12,645.48x = 17,445.34 × 9,282.48
  4. Step 4: Simplify right side
    12,645.48x = 161,936,019.64
  5. Step 5: Solve for x
    x = 161,936,019.64/12,645.48
  6. Step 6: Final answer
    x = 12,805.84

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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.