Home / 13,115.08-19,671.90-5,324.68

Finding the Fourth Proportional to 13,115.08, 19,671.90 and 5,324.68

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Solution

The fourth proportional to 13,115.08, 19,671.90 and 5,324.68 is: 7,986.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.08 : 19,671.90 = 5,324.68 : x
  2. Step 2: Convert to fraction form
    13,115.08/19,671.90 = 5,324.68/x
  3. Step 3: Cross multiply
    13,115.08x = 19,671.90 × 5,324.68
  4. Step 4: Simplify right side
    13,115.08x = 104,746,572.49
  5. Step 5: Solve for x
    x = 104,746,572.49/13,115.08
  6. Step 6: Final answer
    x = 7,986.73

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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.