Home / 11,982.96-16,534.98-6,605.28

Finding the Fourth Proportional to 11,982.96, 16,534.98 and 6,605.28

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Solution

The fourth proportional to 11,982.96, 16,534.98 and 6,605.28 is: 9,114.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982.96 : 16,534.98 = 6,605.28 : x
  2. Step 2: Convert to fraction form
    11,982.96/16,534.98 = 6,605.28/x
  3. Step 3: Cross multiply
    11,982.96x = 16,534.98 × 6,605.28
  4. Step 4: Simplify right side
    11,982.96x = 109,218,172.69
  5. Step 5: Solve for x
    x = 109,218,172.69/11,982.96
  6. Step 6: Final answer
    x = 9,114.46

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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.