Home / 11,649.40-17,450.80-8,513.89

Finding the Fourth Proportional to 11,649.40, 17,450.80 and 8,513.89

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Solution

The fourth proportional to 11,649.40, 17,450.80 and 8,513.89 is: 12,753.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,649.40 : 17,450.80 = 8,513.89 : x
  2. Step 2: Convert to fraction form
    11,649.40/17,450.80 = 8,513.89/x
  3. Step 3: Cross multiply
    11,649.40x = 17,450.80 × 8,513.89
  4. Step 4: Simplify right side
    11,649.40x = 148,574,191.61
  5. Step 5: Solve for x
    x = 148,574,191.61/11,649.40
  6. Step 6: Final answer
    x = 12,753.81

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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.