Home / 12,530.60-18,741.90-11,223.80

Finding the Fourth Proportional to 12,530.60, 18,741.90 and 11,223.80

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Solution

The fourth proportional to 12,530.60, 18,741.90 and 11,223.80 is: 16,787.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530.60 : 18,741.90 = 11,223.80 : x
  2. Step 2: Convert to fraction form
    12,530.60/18,741.90 = 11,223.80/x
  3. Step 3: Cross multiply
    12,530.60x = 18,741.90 × 11,223.80
  4. Step 4: Simplify right side
    12,530.60x = 210,355,337.22
  5. Step 5: Solve for x
    x = 210,355,337.22/12,530.60
  6. Step 6: Final answer
    x = 16,787.33

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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.