Home / 12,090.09-18,118.26-6,531.45

Finding the Fourth Proportional to 12,090.09, 18,118.26 and 6,531.45

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Solution

The fourth proportional to 12,090.09, 18,118.26 and 6,531.45 is: 9,788.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.09 : 18,118.26 = 6,531.45 : x
  2. Step 2: Convert to fraction form
    12,090.09/18,118.26 = 6,531.45/x
  3. Step 3: Cross multiply
    12,090.09x = 18,118.26 × 6,531.45
  4. Step 4: Simplify right side
    12,090.09x = 118,338,509.28
  5. Step 5: Solve for x
    x = 118,338,509.28/12,090.09
  6. Step 6: Final answer
    x = 9,788.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.