Home / 13,719.24-18,932.46-7,750.86

Finding the Fourth Proportional to 13,719.24, 18,932.46 and 7,750.86

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Solution

The fourth proportional to 13,719.24, 18,932.46 and 7,750.86 is: 10,696.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.24 : 18,932.46 = 7,750.86 : x
  2. Step 2: Convert to fraction form
    13,719.24/18,932.46 = 7,750.86/x
  3. Step 3: Cross multiply
    13,719.24x = 18,932.46 × 7,750.86
  4. Step 4: Simplify right side
    13,719.24x = 146,742,846.92
  5. Step 5: Solve for x
    x = 146,742,846.92/13,719.24
  6. Step 6: Final answer
    x = 10,696.14

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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.