Home / 12,012.80-16,577.70-6,707.81

Finding the Fourth Proportional to 12,012.80, 16,577.70 and 6,707.81

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Solution

The fourth proportional to 12,012.80, 16,577.70 and 6,707.81 is: 9,256.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012.80 : 16,577.70 = 6,707.81 : x
  2. Step 2: Convert to fraction form
    12,012.80/16,577.70 = 6,707.81/x
  3. Step 3: Cross multiply
    12,012.80x = 16,577.70 × 6,707.81
  4. Step 4: Simplify right side
    12,012.80x = 111,200,061.84
  5. Step 5: Solve for x
    x = 111,200,061.84/12,012.80
  6. Step 6: Final answer
    x = 9,256.80

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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.