Home / 12,618.03-17,412.05-7,579.26

Finding the Fourth Proportional to 12,618.03, 17,412.05 and 7,579.26

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Solution

The fourth proportional to 12,618.03, 17,412.05 and 7,579.26 is: 10,458.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618.03 : 17,412.05 = 7,579.26 : x
  2. Step 2: Convert to fraction form
    12,618.03/17,412.05 = 7,579.26/x
  3. Step 3: Cross multiply
    12,618.03x = 17,412.05 × 7,579.26
  4. Step 4: Simplify right side
    12,618.03x = 131,970,416.19
  5. Step 5: Solve for x
    x = 131,970,416.19/12,618.03
  6. Step 6: Final answer
    x = 10,458.88

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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.