Home / 13,146.28-19,719.18-3,285.44

Finding the Fourth Proportional to 13,146.28, 19,719.18 and 3,285.44

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Solution

The fourth proportional to 13,146.28, 19,719.18 and 3,285.44 is: 4,928.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.28 : 19,719.18 = 3,285.44 : x
  2. Step 2: Convert to fraction form
    13,146.28/19,719.18 = 3,285.44/x
  3. Step 3: Cross multiply
    13,146.28x = 19,719.18 × 3,285.44
  4. Step 4: Simplify right side
    13,146.28x = 64,786,182.74
  5. Step 5: Solve for x
    x = 64,786,182.74/13,146.28
  6. Step 6: Final answer
    x = 4,928.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.