Home / 13,871.20-20,808.77-4,508.18

Finding the Fourth Proportional to 13,871.20, 20,808.77 and 4,508.18

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Solution

The fourth proportional to 13,871.20, 20,808.77 and 4,508.18 is: 6,762.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871.20 : 20,808.77 = 4,508.18 : x
  2. Step 2: Convert to fraction form
    13,871.20/20,808.77 = 4,508.18/x
  3. Step 3: Cross multiply
    13,871.20x = 20,808.77 × 4,508.18
  4. Step 4: Simplify right side
    13,871.20x = 93,809,728.75
  5. Step 5: Solve for x
    x = 93,809,728.75/13,871.20
  6. Step 6: Final answer
    x = 6,762.91

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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.