Home / 13,479.50-20,292.05-12,123.23

Finding the Fourth Proportional to 13,479.50, 20,292.05 and 12,123.23

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Solution

The fourth proportional to 13,479.50, 20,292.05 and 12,123.23 is: 18,250.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.50 : 20,292.05 = 12,123.23 : x
  2. Step 2: Convert to fraction form
    13,479.50/20,292.05 = 12,123.23/x
  3. Step 3: Cross multiply
    13,479.50x = 20,292.05 × 12,123.23
  4. Step 4: Simplify right side
    13,479.50x = 246,005,027.25
  5. Step 5: Solve for x
    x = 246,005,027.25/13,479.50
  6. Step 6: Final answer
    x = 18,250.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.