Home / 12,756.49-17,604.11-7,091.59

Finding the Fourth Proportional to 12,756.49, 17,604.11 and 7,091.59

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Solution

The fourth proportional to 12,756.49, 17,604.11 and 7,091.59 is: 9,786.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756.49 : 17,604.11 = 7,091.59 : x
  2. Step 2: Convert to fraction form
    12,756.49/17,604.11 = 7,091.59/x
  3. Step 3: Cross multiply
    12,756.49x = 17,604.11 × 7,091.59
  4. Step 4: Simplify right side
    12,756.49x = 124,841,130.43
  5. Step 5: Solve for x
    x = 124,841,130.43/12,756.49
  6. Step 6: Final answer
    x = 9,786.48

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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.