Home / 13,563.91-20,303.75-8,813.71

Finding the Fourth Proportional to 13,563.91, 20,303.75 and 8,813.71

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Solution

The fourth proportional to 13,563.91, 20,303.75 and 8,813.71 is: 13,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563.91 : 20,303.75 = 8,813.71 : x
  2. Step 2: Convert to fraction form
    13,563.91/20,303.75 = 8,813.71/x
  3. Step 3: Cross multiply
    13,563.91x = 20,303.75 × 8,813.71
  4. Step 4: Simplify right side
    13,563.91x = 178,951,320.34
  5. Step 5: Solve for x
    x = 178,951,320.34/13,563.91
  6. Step 6: Final answer
    x = 13,193.20

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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.