Home / 13,860.06-19,126.17-7,571.22

Finding the Fourth Proportional to 13,860.06, 19,126.17 and 7,571.22

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Solution

The fourth proportional to 13,860.06, 19,126.17 and 7,571.22 is: 10,447.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.06 : 19,126.17 = 7,571.22 : x
  2. Step 2: Convert to fraction form
    13,860.06/19,126.17 = 7,571.22/x
  3. Step 3: Cross multiply
    13,860.06x = 19,126.17 × 7,571.22
  4. Step 4: Simplify right side
    13,860.06x = 144,808,440.83
  5. Step 5: Solve for x
    x = 144,808,440.83/13,860.06
  6. Step 6: Final answer
    x = 10,447.89

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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.