Home / 13,513.40-20,268.86-9,581.52

Finding the Fourth Proportional to 13,513.40, 20,268.86 and 9,581.52

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Solution

The fourth proportional to 13,513.40, 20,268.86 and 9,581.52 is: 14,371.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.40 : 20,268.86 = 9,581.52 : x
  2. Step 2: Convert to fraction form
    13,513.40/20,268.86 = 9,581.52/x
  3. Step 3: Cross multiply
    13,513.40x = 20,268.86 × 9,581.52
  4. Step 4: Simplify right side
    13,513.40x = 194,206,439.56
  5. Step 5: Solve for x
    x = 194,206,439.56/13,513.40
  6. Step 6: Final answer
    x = 14,371.40

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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.