Home / 8,681.29-13,018.86-3,133.15

Finding the Fourth Proportional to 8,681.29, 13,018.86 and 3,133.15

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Solution

The fourth proportional to 8,681.29, 13,018.86 and 3,133.15 is: 4,698.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.29 : 13,018.86 = 3,133.15 : x
  2. Step 2: Convert to fraction form
    8,681.29/13,018.86 = 3,133.15/x
  3. Step 3: Cross multiply
    8,681.29x = 13,018.86 × 3,133.15
  4. Step 4: Simplify right side
    8,681.29x = 40,790,041.21
  5. Step 5: Solve for x
    x = 40,790,041.21/8,681.29
  6. Step 6: Final answer
    x = 4,698.62

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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.