Home / 12,632.16-18,942-3,864.96

Finding the Fourth Proportional to 12,632.16, 18,942 and 3,864.96

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Solution

The fourth proportional to 12,632.16, 18,942 and 3,864.96 is: 5,795.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,632.16 : 18,942 = 3,864.96 : x
  2. Step 2: Convert to fraction form
    12,632.16/18,942 = 3,864.96/x
  3. Step 3: Cross multiply
    12,632.16x = 18,942 × 3,864.96
  4. Step 4: Simplify right side
    12,632.16x = 73,210,072.32
  5. Step 5: Solve for x
    x = 73,210,072.32/12,632.16
  6. Step 6: Final answer
    x = 5,795.53

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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.