Home / 10,090.37-15,138.60-5,163.45

Finding the Fourth Proportional to 10,090.37, 15,138.60 and 5,163.45

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Solution

The fourth proportional to 10,090.37, 15,138.60 and 5,163.45 is: 7,746.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,090.37 : 15,138.60 = 5,163.45 : x
  2. Step 2: Convert to fraction form
    10,090.37/15,138.60 = 5,163.45/x
  3. Step 3: Cross multiply
    10,090.37x = 15,138.60 × 5,163.45
  4. Step 4: Simplify right side
    10,090.37x = 78,167,328.04
  5. Step 5: Solve for x
    x = 78,167,328.04/10,090.37
  6. Step 6: Final answer
    x = 7,746.72

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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.