Home / 13,647.75-20,470.86-5,746.92

Finding the Fourth Proportional to 13,647.75, 20,470.86 and 5,746.92

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Solution

The fourth proportional to 13,647.75, 20,470.86 and 5,746.92 is: 8,620.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.75 : 20,470.86 = 5,746.92 : x
  2. Step 2: Convert to fraction form
    13,647.75/20,470.86 = 5,746.92/x
  3. Step 3: Cross multiply
    13,647.75x = 20,470.86 × 5,746.92
  4. Step 4: Simplify right side
    13,647.75x = 117,644,394.75
  5. Step 5: Solve for x
    x = 117,644,394.75/13,647.75
  6. Step 6: Final answer
    x = 8,620.06

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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.