Home / 13,435.57-20,145.15-5,535.64

Finding the Fourth Proportional to 13,435.57, 20,145.15 and 5,535.64

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Solution

The fourth proportional to 13,435.57, 20,145.15 and 5,535.64 is: 8,300.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,435.57 : 20,145.15 = 5,535.64 : x
  2. Step 2: Convert to fraction form
    13,435.57/20,145.15 = 5,535.64/x
  3. Step 3: Cross multiply
    13,435.57x = 20,145.15 × 5,535.64
  4. Step 4: Simplify right side
    13,435.57x = 111,516,169.74
  5. Step 5: Solve for x
    x = 111,516,169.74/13,435.57
  6. Step 6: Final answer
    x = 8,300.07

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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.