Home / 13,847.76-20,785.46-6,457.42

Finding the Fourth Proportional to 13,847.76, 20,785.46 and 6,457.42

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Solution

The fourth proportional to 13,847.76, 20,785.46 and 6,457.42 is: 9,692.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,847.76 : 20,785.46 = 6,457.42 : x
  2. Step 2: Convert to fraction form
    13,847.76/20,785.46 = 6,457.42/x
  3. Step 3: Cross multiply
    13,847.76x = 20,785.46 × 6,457.42
  4. Step 4: Simplify right side
    13,847.76x = 134,220,475.13
  5. Step 5: Solve for x
    x = 134,220,475.13/13,847.76
  6. Step 6: Final answer
    x = 9,692.58

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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.