Home / 12,861.60-19,292.40-11,221.35

Finding the Fourth Proportional to 12,861.60, 19,292.40 and 11,221.35

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Solution

The fourth proportional to 12,861.60, 19,292.40 and 11,221.35 is: 16,832.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861.60 : 19,292.40 = 11,221.35 : x
  2. Step 2: Convert to fraction form
    12,861.60/19,292.40 = 11,221.35/x
  3. Step 3: Cross multiply
    12,861.60x = 19,292.40 × 11,221.35
  4. Step 4: Simplify right side
    12,861.60x = 216,486,772.74
  5. Step 5: Solve for x
    x = 216,486,772.74/12,861.60
  6. Step 6: Final answer
    x = 16,832.03

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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.