Home / 12,350.72-18,537.44-8,890.40

Finding the Fourth Proportional to 12,350.72, 18,537.44 and 8,890.40

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Solution

The fourth proportional to 12,350.72, 18,537.44 and 8,890.40 is: 13,343.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,350.72 : 18,537.44 = 8,890.40 : x
  2. Step 2: Convert to fraction form
    12,350.72/18,537.44 = 8,890.40/x
  3. Step 3: Cross multiply
    12,350.72x = 18,537.44 × 8,890.40
  4. Step 4: Simplify right side
    12,350.72x = 164,805,256.58
  5. Step 5: Solve for x
    x = 164,805,256.58/12,350.72
  6. Step 6: Final answer
    x = 13,343.78

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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.