Home / 8,145.18-11,247.37-5,125.34

Finding the Fourth Proportional to 8,145.18, 11,247.37 and 5,125.34

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Solution

The fourth proportional to 8,145.18, 11,247.37 and 5,125.34 is: 7,077.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.18 : 11,247.37 = 5,125.34 : x
  2. Step 2: Convert to fraction form
    8,145.18/11,247.37 = 5,125.34/x
  3. Step 3: Cross multiply
    8,145.18x = 11,247.37 × 5,125.34
  4. Step 4: Simplify right side
    8,145.18x = 57,646,595.36
  5. Step 5: Solve for x
    x = 57,646,595.36/8,145.18
  6. Step 6: Final answer
    x = 7,077.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.