Home / 11,147.45-16,721.37-5,302.89

Finding the Fourth Proportional to 11,147.45, 16,721.37 and 5,302.89

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Solution

The fourth proportional to 11,147.45, 16,721.37 and 5,302.89 is: 7,954.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.45 : 16,721.37 = 5,302.89 : x
  2. Step 2: Convert to fraction form
    11,147.45/16,721.37 = 5,302.89/x
  3. Step 3: Cross multiply
    11,147.45x = 16,721.37 × 5,302.89
  4. Step 4: Simplify right side
    11,147.45x = 88,671,585.76
  5. Step 5: Solve for x
    x = 88,671,585.76/11,147.45
  6. Step 6: Final answer
    x = 7,954.43

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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.