Home / 18,982.86-28,484.37-12,727.50

Finding the Fourth Proportional to 18,982.86, 28,484.37 and 12,727.50

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Solution

The fourth proportional to 18,982.86, 28,484.37 and 12,727.50 is: 19,098.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,982.86 : 28,484.37 = 12,727.50 : x
  2. Step 2: Convert to fraction form
    18,982.86/28,484.37 = 12,727.50/x
  3. Step 3: Cross multiply
    18,982.86x = 28,484.37 × 12,727.50
  4. Step 4: Simplify right side
    18,982.86x = 362,534,819.18
  5. Step 5: Solve for x
    x = 362,534,819.18/18,982.86
  6. Step 6: Final answer
    x = 19,098.01

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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.