Home / 13,486.60-20,229.90-7,244.20

Finding the Fourth Proportional to 13,486.60, 20,229.90 and 7,244.20

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Solution

The fourth proportional to 13,486.60, 20,229.90 and 7,244.20 is: 10,866.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.60 : 20,229.90 = 7,244.20 : x
  2. Step 2: Convert to fraction form
    13,486.60/20,229.90 = 7,244.20/x
  3. Step 3: Cross multiply
    13,486.60x = 20,229.90 × 7,244.20
  4. Step 4: Simplify right side
    13,486.60x = 146,549,441.58
  5. Step 5: Solve for x
    x = 146,549,441.58/13,486.60
  6. Step 6: Final answer
    x = 10,866.30

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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.