Home / 17,130.21-25,689.84-5,440.70

Finding the Fourth Proportional to 17,130.21, 25,689.84 and 5,440.70

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Solution

The fourth proportional to 17,130.21, 25,689.84 and 5,440.70 is: 8,159.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,130.21 : 25,689.84 = 5,440.70 : x
  2. Step 2: Convert to fraction form
    17,130.21/25,689.84 = 5,440.70/x
  3. Step 3: Cross multiply
    17,130.21x = 25,689.84 × 5,440.70
  4. Step 4: Simplify right side
    17,130.21x = 139,770,712.49
  5. Step 5: Solve for x
    x = 139,770,712.49/17,130.21
  6. Step 6: Final answer
    x = 8,159.31

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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.