Home / 10,152.89-15,230.97-3,131.26

Finding the Fourth Proportional to 10,152.89, 15,230.97 and 3,131.26

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Solution

The fourth proportional to 10,152.89, 15,230.97 and 3,131.26 is: 4,697.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,152.89 : 15,230.97 = 3,131.26 : x
  2. Step 2: Convert to fraction form
    10,152.89/15,230.97 = 3,131.26/x
  3. Step 3: Cross multiply
    10,152.89x = 15,230.97 × 3,131.26
  4. Step 4: Simplify right side
    10,152.89x = 47,692,127.12
  5. Step 5: Solve for x
    x = 47,692,127.12/10,152.89
  6. Step 6: Final answer
    x = 4,697.39

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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.