Home / 12,087.25-16,673.51-9,699.91

Finding the Fourth Proportional to 12,087.25, 16,673.51 and 9,699.91

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Solution

The fourth proportional to 12,087.25, 16,673.51 and 9,699.91 is: 13,380.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.25 : 16,673.51 = 9,699.91 : x
  2. Step 2: Convert to fraction form
    12,087.25/16,673.51 = 9,699.91/x
  3. Step 3: Cross multiply
    12,087.25x = 16,673.51 × 9,699.91
  4. Step 4: Simplify right side
    12,087.25x = 161,731,528.95
  5. Step 5: Solve for x
    x = 161,731,528.95/12,087.25
  6. Step 6: Final answer
    x = 13,380.34

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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.