Home / 13,860.12-19,126.10-7,571.24

Finding the Fourth Proportional to 13,860.12, 19,126.10 and 7,571.24

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Solution

The fourth proportional to 13,860.12, 19,126.10 and 7,571.24 is: 10,447.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.12 : 19,126.10 = 7,571.24 : x
  2. Step 2: Convert to fraction form
    13,860.12/19,126.10 = 7,571.24/x
  3. Step 3: Cross multiply
    13,860.12x = 19,126.10 × 7,571.24
  4. Step 4: Simplify right side
    13,860.12x = 144,808,293.36
  5. Step 5: Solve for x
    x = 144,808,293.36/13,860.12
  6. Step 6: Final answer
    x = 10,447.84

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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.