Home / 18,987.37-28,498.43-9,633.85

Finding the Fourth Proportional to 18,987.37, 28,498.43 and 9,633.85

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Solution

The fourth proportional to 18,987.37, 28,498.43 and 9,633.85 is: 14,459.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987.37 : 28,498.43 = 9,633.85 : x
  2. Step 2: Convert to fraction form
    18,987.37/28,498.43 = 9,633.85/x
  3. Step 3: Cross multiply
    18,987.37x = 28,498.43 × 9,633.85
  4. Step 4: Simplify right side
    18,987.37x = 274,549,552.69
  5. Step 5: Solve for x
    x = 274,549,552.69/18,987.37
  6. Step 6: Final answer
    x = 14,459.59

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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.