Home / 12,022.90-18,040.79-5,007.76

Finding the Fourth Proportional to 12,022.90, 18,040.79 and 5,007.76

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Solution

The fourth proportional to 12,022.90, 18,040.79 and 5,007.76 is: 7,514.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,022.90 : 18,040.79 = 5,007.76 : x
  2. Step 2: Convert to fraction form
    12,022.90/18,040.79 = 5,007.76/x
  3. Step 3: Cross multiply
    12,022.90x = 18,040.79 × 5,007.76
  4. Step 4: Simplify right side
    12,022.90x = 90,343,913.95
  5. Step 5: Solve for x
    x = 90,343,913.95/12,022.90
  6. Step 6: Final answer
    x = 7,514.32

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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.