Home / 13,997.07-19,315.95-7,709.44

Finding the Fourth Proportional to 13,997.07, 19,315.95 and 7,709.44

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Solution

The fourth proportional to 13,997.07, 19,315.95 and 7,709.44 is: 10,639.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.07 : 19,315.95 = 7,709.44 : x
  2. Step 2: Convert to fraction form
    13,997.07/19,315.95 = 7,709.44/x
  3. Step 3: Cross multiply
    13,997.07x = 19,315.95 × 7,709.44
  4. Step 4: Simplify right side
    13,997.07x = 148,915,192.59
  5. Step 5: Solve for x
    x = 148,915,192.59/13,997.07
  6. Step 6: Final answer
    x = 10,639.03

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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.