Home / 13,265.75-19,898.87-10,620.96

Finding the Fourth Proportional to 13,265.75, 19,898.87 and 10,620.96

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Solution

The fourth proportional to 13,265.75, 19,898.87 and 10,620.96 is: 15,931.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.75 : 19,898.87 = 10,620.96 : x
  2. Step 2: Convert to fraction form
    13,265.75/19,898.87 = 10,620.96/x
  3. Step 3: Cross multiply
    13,265.75x = 19,898.87 × 10,620.96
  4. Step 4: Simplify right side
    13,265.75x = 211,345,049.21
  5. Step 5: Solve for x
    x = 211,345,049.21/13,265.75
  6. Step 6: Final answer
    x = 15,931.64

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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.