Home / 8,280.02-12,419.90-2,040.10

Finding the Fourth Proportional to 8,280.02, 12,419.90 and 2,040.10

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Solution

The fourth proportional to 8,280.02, 12,419.90 and 2,040.10 is: 3,060.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280.02 : 12,419.90 = 2,040.10 : x
  2. Step 2: Convert to fraction form
    8,280.02/12,419.90 = 2,040.10/x
  3. Step 3: Cross multiply
    8,280.02x = 12,419.90 × 2,040.10
  4. Step 4: Simplify right side
    8,280.02x = 25,337,837.99
  5. Step 5: Solve for x
    x = 25,337,837.99/8,280.02
  6. Step 6: Final answer
    x = 3,060.12

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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.