Home / 13,013.40-17,961.77-11,684.80

Finding the Fourth Proportional to 13,013.40, 17,961.77 and 11,684.80

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Solution

The fourth proportional to 13,013.40, 17,961.77 and 11,684.80 is: 16,127.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.40 : 17,961.77 = 11,684.80 : x
  2. Step 2: Convert to fraction form
    13,013.40/17,961.77 = 11,684.80/x
  3. Step 3: Cross multiply
    13,013.40x = 17,961.77 × 11,684.80
  4. Step 4: Simplify right side
    13,013.40x = 209,879,674.40
  5. Step 5: Solve for x
    x = 209,879,674.40/13,013.40
  6. Step 6: Final answer
    x = 16,127.97

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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.