Home / 18,429.90-27,650.32-7,330.28

Finding the Fourth Proportional to 18,429.90, 27,650.32 and 7,330.28

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Solution

The fourth proportional to 18,429.90, 27,650.32 and 7,330.28 is: 10,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,429.90 : 27,650.32 = 7,330.28 : x
  2. Step 2: Convert to fraction form
    18,429.90/27,650.32 = 7,330.28/x
  3. Step 3: Cross multiply
    18,429.90x = 27,650.32 × 7,330.28
  4. Step 4: Simplify right side
    18,429.90x = 202,684,587.69
  5. Step 5: Solve for x
    x = 202,684,587.69/18,429.90
  6. Step 6: Final answer
    x = 10,997.60

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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.