Home / 9,990.34-13,786.73-5,514.08

Finding the Fourth Proportional to 9,990.34, 13,786.73 and 5,514.08

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Solution

The fourth proportional to 9,990.34, 13,786.73 and 5,514.08 is: 7,609.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.34 : 13,786.73 = 5,514.08 : x
  2. Step 2: Convert to fraction form
    9,990.34/13,786.73 = 5,514.08/x
  3. Step 3: Cross multiply
    9,990.34x = 13,786.73 × 5,514.08
  4. Step 4: Simplify right side
    9,990.34x = 76,021,132.16
  5. Step 5: Solve for x
    x = 76,021,132.16/9,990.34
  6. Step 6: Final answer
    x = 7,609.46

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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.