Home / 12,302.98-18,457.40-3,983

Finding the Fourth Proportional to 12,302.98, 18,457.40 and 3,983

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Solution

The fourth proportional to 12,302.98, 18,457.40 and 3,983 is: 5,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,302.98 : 18,457.40 = 3,983 : x
  2. Step 2: Convert to fraction form
    12,302.98/18,457.40 = 3,983/x
  3. Step 3: Cross multiply
    12,302.98x = 18,457.40 × 3,983
  4. Step 4: Simplify right side
    12,302.98x = 73,515,824.20
  5. Step 5: Solve for x
    x = 73,515,824.20/12,302.98
  6. Step 6: Final answer
    x = 5,975.45

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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.