Home / 12,411.93-17,128.77-6,747

Finding the Fourth Proportional to 12,411.93, 17,128.77 and 6,747

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Solution

The fourth proportional to 12,411.93, 17,128.77 and 6,747 is: 9,311.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,411.93 : 17,128.77 = 6,747 : x
  2. Step 2: Convert to fraction form
    12,411.93/17,128.77 = 6,747/x
  3. Step 3: Cross multiply
    12,411.93x = 17,128.77 × 6,747
  4. Step 4: Simplify right side
    12,411.93x = 115,567,811.19
  5. Step 5: Solve for x
    x = 115,567,811.19/12,411.93
  6. Step 6: Final answer
    x = 9,311.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.