Home / 13,775.18-20,659.62-6,748.16

Finding the Fourth Proportional to 13,775.18, 20,659.62 and 6,748.16

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Solution

The fourth proportional to 13,775.18, 20,659.62 and 6,748.16 is: 10,120.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.18 : 20,659.62 = 6,748.16 : x
  2. Step 2: Convert to fraction form
    13,775.18/20,659.62 = 6,748.16/x
  3. Step 3: Cross multiply
    13,775.18x = 20,659.62 × 6,748.16
  4. Step 4: Simplify right side
    13,775.18x = 139,414,421.30
  5. Step 5: Solve for x
    x = 139,414,421.30/13,775.18
  6. Step 6: Final answer
    x = 10,120.70

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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.