Home / 13,080.45-18,050.65-7,415.73

Finding the Fourth Proportional to 13,080.45, 18,050.65 and 7,415.73

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Solution

The fourth proportional to 13,080.45, 18,050.65 and 7,415.73 is: 10,233.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.45 : 18,050.65 = 7,415.73 : x
  2. Step 2: Convert to fraction form
    13,080.45/18,050.65 = 7,415.73/x
  3. Step 3: Cross multiply
    13,080.45x = 18,050.65 × 7,415.73
  4. Step 4: Simplify right side
    13,080.45x = 133,858,746.72
  5. Step 5: Solve for x
    x = 133,858,746.72/13,080.45
  6. Step 6: Final answer
    x = 10,233.50

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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.