Home / 13,646.18-20,457.30-11,325.44

Finding the Fourth Proportional to 13,646.18, 20,457.30 and 11,325.44

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Solution

The fourth proportional to 13,646.18, 20,457.30 and 11,325.44 is: 16,978.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,646.18 : 20,457.30 = 11,325.44 : x
  2. Step 2: Convert to fraction form
    13,646.18/20,457.30 = 11,325.44/x
  3. Step 3: Cross multiply
    13,646.18x = 20,457.30 × 11,325.44
  4. Step 4: Simplify right side
    13,646.18x = 231,687,923.71
  5. Step 5: Solve for x
    x = 231,687,923.71/13,646.18
  6. Step 6: Final answer
    x = 16,978.23

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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.