Home / 13,581.27-18,722.49-9,535.77

Finding the Fourth Proportional to 13,581.27, 18,722.49 and 9,535.77

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Solution

The fourth proportional to 13,581.27, 18,722.49 and 9,535.77 is: 13,145.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581.27 : 18,722.49 = 9,535.77 : x
  2. Step 2: Convert to fraction form
    13,581.27/18,722.49 = 9,535.77/x
  3. Step 3: Cross multiply
    13,581.27x = 18,722.49 × 9,535.77
  4. Step 4: Simplify right side
    13,581.27x = 178,533,358.47
  5. Step 5: Solve for x
    x = 178,533,358.47/13,581.27
  6. Step 6: Final answer
    x = 13,145.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.