Home / 12,485.64-18,729.18-4,694.52

Finding the Fourth Proportional to 12,485.64, 18,729.18 and 4,694.52

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Solution

The fourth proportional to 12,485.64, 18,729.18 and 4,694.52 is: 7,042.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485.64 : 18,729.18 = 4,694.52 : x
  2. Step 2: Convert to fraction form
    12,485.64/18,729.18 = 4,694.52/x
  3. Step 3: Cross multiply
    12,485.64x = 18,729.18 × 4,694.52
  4. Step 4: Simplify right side
    12,485.64x = 87,924,510.09
  5. Step 5: Solve for x
    x = 87,924,510.09/12,485.64
  6. Step 6: Final answer
    x = 7,042.05

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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.