Home / 13,448.88-20,163.60-6,870.06

Finding the Fourth Proportional to 13,448.88, 20,163.60 and 6,870.06

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Solution

The fourth proportional to 13,448.88, 20,163.60 and 6,870.06 is: 10,300.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.88 : 20,163.60 = 6,870.06 : x
  2. Step 2: Convert to fraction form
    13,448.88/20,163.60 = 6,870.06/x
  3. Step 3: Cross multiply
    13,448.88x = 20,163.60 × 6,870.06
  4. Step 4: Simplify right side
    13,448.88x = 138,525,141.82
  5. Step 5: Solve for x
    x = 138,525,141.82/13,448.88
  6. Step 6: Final answer
    x = 10,300.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.