Home / 13,859.10-19,125.99-7,571.34

Finding the Fourth Proportional to 13,859.10, 19,125.99 and 7,571.34

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Solution

The fourth proportional to 13,859.10, 19,125.99 and 7,571.34 is: 10,448.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.10 : 19,125.99 = 7,571.34 : x
  2. Step 2: Convert to fraction form
    13,859.10/19,125.99 = 7,571.34/x
  3. Step 3: Cross multiply
    13,859.10x = 19,125.99 × 7,571.34
  4. Step 4: Simplify right side
    13,859.10x = 144,809,373.13
  5. Step 5: Solve for x
    x = 144,809,373.13/13,859.10
  6. Step 6: Final answer
    x = 10,448.69

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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.