Home / 12,475.19-18,707.30-4,678.54

Finding the Fourth Proportional to 12,475.19, 18,707.30 and 4,678.54

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Solution

The fourth proportional to 12,475.19, 18,707.30 and 4,678.54 is: 7,015.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.19 : 18,707.30 = 4,678.54 : x
  2. Step 2: Convert to fraction form
    12,475.19/18,707.30 = 4,678.54/x
  3. Step 3: Cross multiply
    12,475.19x = 18,707.30 × 4,678.54
  4. Step 4: Simplify right side
    12,475.19x = 87,522,798.73
  5. Step 5: Solve for x
    x = 87,522,798.73/12,475.19
  6. Step 6: Final answer
    x = 7,015.75

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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.