Home / 13,670.25-20,513.58-5,879.07

Finding the Fourth Proportional to 13,670.25, 20,513.58 and 5,879.07

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Solution

The fourth proportional to 13,670.25, 20,513.58 and 5,879.07 is: 8,822.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.25 : 20,513.58 = 5,879.07 : x
  2. Step 2: Convert to fraction form
    13,670.25/20,513.58 = 5,879.07/x
  3. Step 3: Cross multiply
    13,670.25x = 20,513.58 × 5,879.07
  4. Step 4: Simplify right side
    13,670.25x = 120,600,772.77
  5. Step 5: Solve for x
    x = 120,600,772.77/13,670.25
  6. Step 6: Final answer
    x = 8,822.13

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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.