Home / 13,185.45-19,790.01-6,615.32

Finding the Fourth Proportional to 13,185.45, 19,790.01 and 6,615.32

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Solution

The fourth proportional to 13,185.45, 19,790.01 and 6,615.32 is: 9,928.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.45 : 19,790.01 = 6,615.32 : x
  2. Step 2: Convert to fraction form
    13,185.45/19,790.01 = 6,615.32/x
  3. Step 3: Cross multiply
    13,185.45x = 19,790.01 × 6,615.32
  4. Step 4: Simplify right side
    13,185.45x = 130,917,150.00
  5. Step 5: Solve for x
    x = 130,917,150.00/13,185.45
  6. Step 6: Final answer
    x = 9,928.91

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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.