Home / 12,090.88-16,686.32-6,714.50

Finding the Fourth Proportional to 12,090.88, 16,686.32 and 6,714.50

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Solution

The fourth proportional to 12,090.88, 16,686.32 and 6,714.50 is: 9,266.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.88 : 16,686.32 = 6,714.50 : x
  2. Step 2: Convert to fraction form
    12,090.88/16,686.32 = 6,714.50/x
  3. Step 3: Cross multiply
    12,090.88x = 16,686.32 × 6,714.50
  4. Step 4: Simplify right side
    12,090.88x = 112,040,295.64
  5. Step 5: Solve for x
    x = 112,040,295.64/12,090.88
  6. Step 6: Final answer
    x = 9,266.52

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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.