Home / 13,859.32-19,126.12-7,571.56

Finding the Fourth Proportional to 13,859.32, 19,126.12 and 7,571.56

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Solution

The fourth proportional to 13,859.32, 19,126.12 and 7,571.56 is: 10,448.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.32 : 19,126.12 = 7,571.56 : x
  2. Step 2: Convert to fraction form
    13,859.32/19,126.12 = 7,571.56/x
  3. Step 3: Cross multiply
    13,859.32x = 19,126.12 × 7,571.56
  4. Step 4: Simplify right side
    13,859.32x = 144,814,565.15
  5. Step 5: Solve for x
    x = 144,814,565.15/13,859.32
  6. Step 6: Final answer
    x = 10,448.89

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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.