Home / 10,100.09-15,153.22-5,173.21

Finding the Fourth Proportional to 10,100.09, 15,153.22 and 5,173.21

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Solution

The fourth proportional to 10,100.09, 15,153.22 and 5,173.21 is: 7,761.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,100.09 : 15,153.22 = 5,173.21 : x
  2. Step 2: Convert to fraction form
    10,100.09/15,153.22 = 5,173.21/x
  3. Step 3: Cross multiply
    10,100.09x = 15,153.22 × 5,173.21
  4. Step 4: Simplify right side
    10,100.09x = 78,390,789.24
  5. Step 5: Solve for x
    x = 78,390,789.24/10,100.09
  6. Step 6: Final answer
    x = 7,761.40

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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.