Home / 12,475.44-18,707.69-4,678.79

Finding the Fourth Proportional to 12,475.44, 18,707.69 and 4,678.79

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Solution

The fourth proportional to 12,475.44, 18,707.69 and 4,678.79 is: 7,016.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.44 : 18,707.69 = 4,678.79 : x
  2. Step 2: Convert to fraction form
    12,475.44/18,707.69 = 4,678.79/x
  3. Step 3: Cross multiply
    12,475.44x = 18,707.69 × 4,678.79
  4. Step 4: Simplify right side
    12,475.44x = 87,529,235.96
  5. Step 5: Solve for x
    x = 87,529,235.96/12,475.44
  6. Step 6: Final answer
    x = 7,016.12

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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.