Home / 18,987.14-28,498.06-9,633.60

Finding the Fourth Proportional to 18,987.14, 28,498.06 and 9,633.60

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Solution

The fourth proportional to 18,987.14, 28,498.06 and 9,633.60 is: 14,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987.14 : 28,498.06 = 9,633.60 : x
  2. Step 2: Convert to fraction form
    18,987.14/28,498.06 = 9,633.60/x
  3. Step 3: Cross multiply
    18,987.14x = 28,498.06 × 9,633.60
  4. Step 4: Simplify right side
    18,987.14x = 274,538,910.82
  5. Step 5: Solve for x
    x = 274,538,910.82/18,987.14
  6. Step 6: Final answer
    x = 14,459.20

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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.