Home / 13,518.86-20,279.48-4,753.84

Finding the Fourth Proportional to 13,518.86, 20,279.48 and 4,753.84

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Solution

The fourth proportional to 13,518.86, 20,279.48 and 4,753.84 is: 7,131.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.86 : 20,279.48 = 4,753.84 : x
  2. Step 2: Convert to fraction form
    13,518.86/20,279.48 = 4,753.84/x
  3. Step 3: Cross multiply
    13,518.86x = 20,279.48 × 4,753.84
  4. Step 4: Simplify right side
    13,518.86x = 96,405,403.20
  5. Step 5: Solve for x
    x = 96,405,403.20/13,518.86
  6. Step 6: Final answer
    x = 7,131.18

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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.