Home / 18,485.42-27,715.15-6,474.63

Finding the Fourth Proportional to 18,485.42, 27,715.15 and 6,474.63

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Solution

The fourth proportional to 18,485.42, 27,715.15 and 6,474.63 is: 9,707.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,485.42 : 27,715.15 = 6,474.63 : x
  2. Step 2: Convert to fraction form
    18,485.42/27,715.15 = 6,474.63/x
  3. Step 3: Cross multiply
    18,485.42x = 27,715.15 × 6,474.63
  4. Step 4: Simplify right side
    18,485.42x = 179,445,429.39
  5. Step 5: Solve for x
    x = 179,445,429.39/18,485.42
  6. Step 6: Final answer
    x = 9,707.40

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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.