Home / 18,990.03-28,484.96-6,510.09

Finding the Fourth Proportional to 18,990.03, 28,484.96 and 6,510.09

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Solution

The fourth proportional to 18,990.03, 28,484.96 and 6,510.09 is: 9,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,990.03 : 28,484.96 = 6,510.09 : x
  2. Step 2: Convert to fraction form
    18,990.03/28,484.96 = 6,510.09/x
  3. Step 3: Cross multiply
    18,990.03x = 28,484.96 × 6,510.09
  4. Step 4: Simplify right side
    18,990.03x = 185,439,620.70
  5. Step 5: Solve for x
    x = 185,439,620.70/18,990.03
  6. Step 6: Final answer
    x = 9,765.10

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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.