Home / 13,535.40-20,302.38-4,300.68

Finding the Fourth Proportional to 13,535.40, 20,302.38 and 4,300.68

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Solution

The fourth proportional to 13,535.40, 20,302.38 and 4,300.68 is: 6,450.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,535.40 : 20,302.38 = 4,300.68 : x
  2. Step 2: Convert to fraction form
    13,535.40/20,302.38 = 4,300.68/x
  3. Step 3: Cross multiply
    13,535.40x = 20,302.38 × 4,300.68
  4. Step 4: Simplify right side
    13,535.40x = 87,314,039.62
  5. Step 5: Solve for x
    x = 87,314,039.62/13,535.40
  6. Step 6: Final answer
    x = 6,450.79

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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.