Home / 12,085.18-16,677.09-6,780.30

Finding the Fourth Proportional to 12,085.18, 16,677.09 and 6,780.30

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Solution

The fourth proportional to 12,085.18, 16,677.09 and 6,780.30 is: 9,356.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,085.18 : 16,677.09 = 6,780.30 : x
  2. Step 2: Convert to fraction form
    12,085.18/16,677.09 = 6,780.30/x
  3. Step 3: Cross multiply
    12,085.18x = 16,677.09 × 6,780.30
  4. Step 4: Simplify right side
    12,085.18x = 113,075,673.33
  5. Step 5: Solve for x
    x = 113,075,673.33/12,085.18
  6. Step 6: Final answer
    x = 9,356.56

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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.