Home / 10,128.37-15,174.11-7,466.55

Finding the Fourth Proportional to 10,128.37, 15,174.11 and 7,466.55

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Solution

The fourth proportional to 10,128.37, 15,174.11 and 7,466.55 is: 11,186.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.37 : 15,174.11 = 7,466.55 : x
  2. Step 2: Convert to fraction form
    10,128.37/15,174.11 = 7,466.55/x
  3. Step 3: Cross multiply
    10,128.37x = 15,174.11 × 7,466.55
  4. Step 4: Simplify right side
    10,128.37x = 113,298,296.19
  5. Step 5: Solve for x
    x = 113,298,296.19/10,128.37
  6. Step 6: Final answer
    x = 11,186.23

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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.