Home / 13,507.20-20,260.72-4,744.60

Finding the Fourth Proportional to 13,507.20, 20,260.72 and 4,744.60

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Solution

The fourth proportional to 13,507.20, 20,260.72 and 4,744.60 is: 7,116.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507.20 : 20,260.72 = 4,744.60 : x
  2. Step 2: Convert to fraction form
    13,507.20/20,260.72 = 4,744.60/x
  3. Step 3: Cross multiply
    13,507.20x = 20,260.72 × 4,744.60
  4. Step 4: Simplify right side
    13,507.20x = 96,129,012.11
  5. Step 5: Solve for x
    x = 96,129,012.11/13,507.20
  6. Step 6: Final answer
    x = 7,116.87

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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.