Home / 13,996.80-19,315.17-7,709.04

Finding the Fourth Proportional to 13,996.80, 19,315.17 and 7,709.04

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Solution

The fourth proportional to 13,996.80, 19,315.17 and 7,709.04 is: 10,638.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,996.80 : 19,315.17 = 7,709.04 : x
  2. Step 2: Convert to fraction form
    13,996.80/19,315.17 = 7,709.04/x
  3. Step 3: Cross multiply
    13,996.80x = 19,315.17 × 7,709.04
  4. Step 4: Simplify right side
    13,996.80x = 148,901,418.14
  5. Step 5: Solve for x
    x = 148,901,418.14/13,996.80
  6. Step 6: Final answer
    x = 10,638.25

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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.