Home / 15,372.82-21,220.46-12,016.74

Finding the Fourth Proportional to 15,372.82, 21,220.46 and 12,016.74

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Solution

The fourth proportional to 15,372.82, 21,220.46 and 12,016.74 is: 16,587.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,372.82 : 21,220.46 = 12,016.74 : x
  2. Step 2: Convert to fraction form
    15,372.82/21,220.46 = 12,016.74/x
  3. Step 3: Cross multiply
    15,372.82x = 21,220.46 × 12,016.74
  4. Step 4: Simplify right side
    15,372.82x = 255,000,750.50
  5. Step 5: Solve for x
    x = 255,000,750.50/15,372.82
  6. Step 6: Final answer
    x = 16,587.77

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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.