Home / 13,359.28-18,435.92-7,391.14

Finding the Fourth Proportional to 13,359.28, 18,435.92 and 7,391.14

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Solution

The fourth proportional to 13,359.28, 18,435.92 and 7,391.14 is: 10,199.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.28 : 18,435.92 = 7,391.14 : x
  2. Step 2: Convert to fraction form
    13,359.28/18,435.92 = 7,391.14/x
  3. Step 3: Cross multiply
    13,359.28x = 18,435.92 × 7,391.14
  4. Step 4: Simplify right side
    13,359.28x = 136,262,465.75
  5. Step 5: Solve for x
    x = 136,262,465.75/13,359.28
  6. Step 6: Final answer
    x = 10,199.84

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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.