Home / 12,576.69-18,864.39-4,679.19

Finding the Fourth Proportional to 12,576.69, 18,864.39 and 4,679.19

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Solution

The fourth proportional to 12,576.69, 18,864.39 and 4,679.19 is: 7,018.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.69 : 18,864.39 = 4,679.19 : x
  2. Step 2: Convert to fraction form
    12,576.69/18,864.39 = 4,679.19/x
  3. Step 3: Cross multiply
    12,576.69x = 18,864.39 × 4,679.19
  4. Step 4: Simplify right side
    12,576.69x = 88,270,065.04
  5. Step 5: Solve for x
    x = 88,270,065.04/12,576.69
  6. Step 6: Final answer
    x = 7,018.55

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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.