Home / 13,913.51-20,870.33-3,525.26

Finding the Fourth Proportional to 13,913.51, 20,870.33 and 3,525.26

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Solution

The fourth proportional to 13,913.51, 20,870.33 and 3,525.26 is: 5,287.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.51 : 20,870.33 = 3,525.26 : x
  2. Step 2: Convert to fraction form
    13,913.51/20,870.33 = 3,525.26/x
  3. Step 3: Cross multiply
    13,913.51x = 20,870.33 × 3,525.26
  4. Step 4: Simplify right side
    13,913.51x = 73,573,217.56
  5. Step 5: Solve for x
    x = 73,573,217.56/13,913.51
  6. Step 6: Final answer
    x = 5,287.90

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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.