Home / 12,285.10-18,423.42-3,962.98

Finding the Fourth Proportional to 12,285.10, 18,423.42 and 3,962.98

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Solution

The fourth proportional to 12,285.10, 18,423.42 and 3,962.98 is: 5,943.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285.10 : 18,423.42 = 3,962.98 : x
  2. Step 2: Convert to fraction form
    12,285.10/18,423.42 = 3,962.98/x
  3. Step 3: Cross multiply
    12,285.10x = 18,423.42 × 3,962.98
  4. Step 4: Simplify right side
    12,285.10x = 73,011,644.99
  5. Step 5: Solve for x
    x = 73,011,644.99/12,285.10
  6. Step 6: Final answer
    x = 5,943.11

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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.