Home / 13,457.16-20,185.74-4,691.85

Finding the Fourth Proportional to 13,457.16, 20,185.74 and 4,691.85

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Solution

The fourth proportional to 13,457.16, 20,185.74 and 4,691.85 is: 7,037.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.16 : 20,185.74 = 4,691.85 : x
  2. Step 2: Convert to fraction form
    13,457.16/20,185.74 = 4,691.85/x
  3. Step 3: Cross multiply
    13,457.16x = 20,185.74 × 4,691.85
  4. Step 4: Simplify right side
    13,457.16x = 94,708,464.22
  5. Step 5: Solve for x
    x = 94,708,464.22/13,457.16
  6. Step 6: Final answer
    x = 7,037.78

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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.