Home / 13,523.90-20,287.46-4,759.70

Finding the Fourth Proportional to 13,523.90, 20,287.46 and 4,759.70

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Solution

The fourth proportional to 13,523.90, 20,287.46 and 4,759.70 is: 7,140.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,523.90 : 20,287.46 = 4,759.70 : x
  2. Step 2: Convert to fraction form
    13,523.90/20,287.46 = 4,759.70/x
  3. Step 3: Cross multiply
    13,523.90x = 20,287.46 × 4,759.70
  4. Step 4: Simplify right side
    13,523.90x = 96,562,133.82
  5. Step 5: Solve for x
    x = 96,562,133.82/13,523.90
  6. Step 6: Final answer
    x = 7,140.11

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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.