Home / 11,166.04-15,421.62-7,189.48

Finding the Fourth Proportional to 11,166.04, 15,421.62 and 7,189.48

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Solution

The fourth proportional to 11,166.04, 15,421.62 and 7,189.48 is: 9,929.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,166.04 : 15,421.62 = 7,189.48 : x
  2. Step 2: Convert to fraction form
    11,166.04/15,421.62 = 7,189.48/x
  3. Step 3: Cross multiply
    11,166.04x = 15,421.62 × 7,189.48
  4. Step 4: Simplify right side
    11,166.04x = 110,873,428.56
  5. Step 5: Solve for x
    x = 110,873,428.56/11,166.04
  6. Step 6: Final answer
    x = 9,929.52

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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.