Home / 11,719.64-16,173.20-7,242.37

Finding the Fourth Proportional to 11,719.64, 16,173.20 and 7,242.37

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Solution

The fourth proportional to 11,719.64, 16,173.20 and 7,242.37 is: 9,994.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,719.64 : 16,173.20 = 7,242.37 : x
  2. Step 2: Convert to fraction form
    11,719.64/16,173.20 = 7,242.37/x
  3. Step 3: Cross multiply
    11,719.64x = 16,173.20 × 7,242.37
  4. Step 4: Simplify right side
    11,719.64x = 117,132,298.48
  5. Step 5: Solve for x
    x = 117,132,298.48/11,719.64
  6. Step 6: Final answer
    x = 9,994.53

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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.