Home / 13,521.30-20,283.87-4,162.08

Finding the Fourth Proportional to 13,521.30, 20,283.87 and 4,162.08

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Solution

The fourth proportional to 13,521.30, 20,283.87 and 4,162.08 is: 6,243.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.30 : 20,283.87 = 4,162.08 : x
  2. Step 2: Convert to fraction form
    13,521.30/20,283.87 = 4,162.08/x
  3. Step 3: Cross multiply
    13,521.30x = 20,283.87 × 4,162.08
  4. Step 4: Simplify right side
    13,521.30x = 84,423,089.65
  5. Step 5: Solve for x
    x = 84,423,089.65/13,521.30
  6. Step 6: Final answer
    x = 6,243.71

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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.