Home / 12,553.24-18,823.62-4,230.40

Finding the Fourth Proportional to 12,553.24, 18,823.62 and 4,230.40

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Solution

The fourth proportional to 12,553.24, 18,823.62 and 4,230.40 is: 6,343.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.24 : 18,823.62 = 4,230.40 : x
  2. Step 2: Convert to fraction form
    12,553.24/18,823.62 = 4,230.40/x
  3. Step 3: Cross multiply
    12,553.24x = 18,823.62 × 4,230.40
  4. Step 4: Simplify right side
    12,553.24x = 79,631,442.05
  5. Step 5: Solve for x
    x = 79,631,442.05/12,553.24
  6. Step 6: Final answer
    x = 6,343.50

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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.