Home / 13,146.50-19,719.66-3,285.72

Finding the Fourth Proportional to 13,146.50, 19,719.66 and 3,285.72

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Solution

The fourth proportional to 13,146.50, 19,719.66 and 3,285.72 is: 4,928.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.50 : 19,719.66 = 3,285.72 : x
  2. Step 2: Convert to fraction form
    13,146.50/19,719.66 = 3,285.72/x
  3. Step 3: Cross multiply
    13,146.50x = 19,719.66 × 3,285.72
  4. Step 4: Simplify right side
    13,146.50x = 64,793,281.26
  5. Step 5: Solve for x
    x = 64,793,281.26/13,146.50
  6. Step 6: Final answer
    x = 4,928.56

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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.