Home / 13,859.12-19,125.50-7,571.46

Finding the Fourth Proportional to 13,859.12, 19,125.50 and 7,571.46

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Solution

The fourth proportional to 13,859.12, 19,125.50 and 7,571.46 is: 10,448.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.12 : 19,125.50 = 7,571.46 : x
  2. Step 2: Convert to fraction form
    13,859.12/19,125.50 = 7,571.46/x
  3. Step 3: Cross multiply
    13,859.12x = 19,125.50 × 7,571.46
  4. Step 4: Simplify right side
    13,859.12x = 144,807,958.23
  5. Step 5: Solve for x
    x = 144,807,958.23/13,859.12
  6. Step 6: Final answer
    x = 10,448.57

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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.