Home / 12,510.60-18,773.10-4,720.20

Finding the Fourth Proportional to 12,510.60, 18,773.10 and 4,720.20

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Solution

The fourth proportional to 12,510.60, 18,773.10 and 4,720.20 is: 7,083.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,510.60 : 18,773.10 = 4,720.20 : x
  2. Step 2: Convert to fraction form
    12,510.60/18,773.10 = 4,720.20/x
  3. Step 3: Cross multiply
    12,510.60x = 18,773.10 × 4,720.20
  4. Step 4: Simplify right side
    12,510.60x = 88,612,786.62
  5. Step 5: Solve for x
    x = 88,612,786.62/12,510.60
  6. Step 6: Final answer
    x = 7,083.02

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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.