Home / 9,018.28-13,520.08-3,179

Finding the Fourth Proportional to 9,018.28, 13,520.08 and 3,179

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Solution

The fourth proportional to 9,018.28, 13,520.08 and 3,179 is: 4,765.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,018.28 : 13,520.08 = 3,179 : x
  2. Step 2: Convert to fraction form
    9,018.28/13,520.08 = 3,179/x
  3. Step 3: Cross multiply
    9,018.28x = 13,520.08 × 3,179
  4. Step 4: Simplify right side
    9,018.28x = 42,980,334.32
  5. Step 5: Solve for x
    x = 42,980,334.32/9,018.28
  6. Step 6: Final answer
    x = 4,765.91

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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.