Home / 18,012.45-27,018.33-10,567.77

Finding the Fourth Proportional to 18,012.45, 27,018.33 and 10,567.77

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Solution

The fourth proportional to 18,012.45, 27,018.33 and 10,567.77 is: 15,851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,012.45 : 27,018.33 = 10,567.77 : x
  2. Step 2: Convert to fraction form
    18,012.45/27,018.33 = 10,567.77/x
  3. Step 3: Cross multiply
    18,012.45x = 27,018.33 × 10,567.77
  4. Step 4: Simplify right side
    18,012.45x = 285,523,445.44
  5. Step 5: Solve for x
    x = 285,523,445.44/18,012.45
  6. Step 6: Final answer
    x = 15,851.45

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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.