Home / 12,101.40-16,699.37-6,724.22

Finding the Fourth Proportional to 12,101.40, 16,699.37 and 6,724.22

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Solution

The fourth proportional to 12,101.40, 16,699.37 and 6,724.22 is: 9,279.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101.40 : 16,699.37 = 6,724.22 : x
  2. Step 2: Convert to fraction form
    12,101.40/16,699.37 = 6,724.22/x
  3. Step 3: Cross multiply
    12,101.40x = 16,699.37 × 6,724.22
  4. Step 4: Simplify right side
    12,101.40x = 112,290,237.74
  5. Step 5: Solve for x
    x = 112,290,237.74/12,101.40
  6. Step 6: Final answer
    x = 9,279.11

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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.