Home / 11,347.80-17,012.13-5,421.33

Finding the Fourth Proportional to 11,347.80, 17,012.13 and 5,421.33

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Solution

The fourth proportional to 11,347.80, 17,012.13 and 5,421.33 is: 8,127.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,347.80 : 17,012.13 = 5,421.33 : x
  2. Step 2: Convert to fraction form
    11,347.80/17,012.13 = 5,421.33/x
  3. Step 3: Cross multiply
    11,347.80x = 17,012.13 × 5,421.33
  4. Step 4: Simplify right side
    11,347.80x = 92,228,350.40
  5. Step 5: Solve for x
    x = 92,228,350.40/11,347.80
  6. Step 6: Final answer
    x = 8,127.42

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1.5x scale

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.