Home / 18,996.85-28,498.02-6,520.03

Finding the Fourth Proportional to 18,996.85, 28,498.02 and 6,520.03

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Solution

The fourth proportional to 18,996.85, 28,498.02 and 6,520.03 is: 9,780.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,996.85 : 28,498.02 = 6,520.03 : x
  2. Step 2: Convert to fraction form
    18,996.85/28,498.02 = 6,520.03/x
  3. Step 3: Cross multiply
    18,996.85x = 28,498.02 × 6,520.03
  4. Step 4: Simplify right side
    18,996.85x = 185,807,945.34
  5. Step 5: Solve for x
    x = 185,807,945.34/18,996.85
  6. Step 6: Final answer
    x = 9,780.99

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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.