Home / 13,521.03-20,281.59-4,160.99

Finding the Fourth Proportional to 13,521.03, 20,281.59 and 4,160.99

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Solution

The fourth proportional to 13,521.03, 20,281.59 and 4,160.99 is: 6,241.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.03 : 20,281.59 = 4,160.99 : x
  2. Step 2: Convert to fraction form
    13,521.03/20,281.59 = 4,160.99/x
  3. Step 3: Cross multiply
    13,521.03x = 20,281.59 × 4,160.99
  4. Step 4: Simplify right side
    13,521.03x = 84,391,391.77
  5. Step 5: Solve for x
    x = 84,391,391.77/13,521.03
  6. Step 6: Final answer
    x = 6,241.49

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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.