Home / 13,505.16-20,257.57-3,509.02

Finding the Fourth Proportional to 13,505.16, 20,257.57 and 3,509.02

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Solution

The fourth proportional to 13,505.16, 20,257.57 and 3,509.02 is: 5,263.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505.16 : 20,257.57 = 3,509.02 : x
  2. Step 2: Convert to fraction form
    13,505.16/20,257.57 = 3,509.02/x
  3. Step 3: Cross multiply
    13,505.16x = 20,257.57 × 3,509.02
  4. Step 4: Simplify right side
    13,505.16x = 71,084,157.59
  5. Step 5: Solve for x
    x = 71,084,157.59/13,505.16
  6. Step 6: Final answer
    x = 5,263.48

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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.