Home / 12,023.80-16,592.36-6,987.78

Finding the Fourth Proportional to 12,023.80, 16,592.36 and 6,987.78

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Solution

The fourth proportional to 12,023.80, 16,592.36 and 6,987.78 is: 9,642.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,023.80 : 16,592.36 = 6,987.78 : x
  2. Step 2: Convert to fraction form
    12,023.80/16,592.36 = 6,987.78/x
  3. Step 3: Cross multiply
    12,023.80x = 16,592.36 × 6,987.78
  4. Step 4: Simplify right side
    12,023.80x = 115,943,778.83
  5. Step 5: Solve for x
    x = 115,943,778.83/12,023.80
  6. Step 6: Final answer
    x = 9,642.86

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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.