Home / 12,304.98-18,457.11-3,420.27

Finding the Fourth Proportional to 12,304.98, 18,457.11 and 3,420.27

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Solution

The fourth proportional to 12,304.98, 18,457.11 and 3,420.27 is: 5,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,304.98 : 18,457.11 = 3,420.27 : x
  2. Step 2: Convert to fraction form
    12,304.98/18,457.11 = 3,420.27/x
  3. Step 3: Cross multiply
    12,304.98x = 18,457.11 × 3,420.27
  4. Step 4: Simplify right side
    12,304.98x = 63,128,299.62
  5. Step 5: Solve for x
    x = 63,128,299.62/12,304.98
  6. Step 6: Final answer
    x = 5,130.30

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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.