Home / 12,134.48-16,750.75-8,157.90

Finding the Fourth Proportional to 12,134.48, 16,750.75 and 8,157.90

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Solution

The fourth proportional to 12,134.48, 16,750.75 and 8,157.90 is: 11,261.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,134.48 : 16,750.75 = 8,157.90 : x
  2. Step 2: Convert to fraction form
    12,134.48/16,750.75 = 8,157.90/x
  3. Step 3: Cross multiply
    12,134.48x = 16,750.75 × 8,157.90
  4. Step 4: Simplify right side
    12,134.48x = 136,650,868.27
  5. Step 5: Solve for x
    x = 136,650,868.27/12,134.48
  6. Step 6: Final answer
    x = 11,261.37

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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.