Home / 14,785.21-20,403.57-11,011.60

Finding the Fourth Proportional to 14,785.21, 20,403.57 and 11,011.60

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Solution

The fourth proportional to 14,785.21, 20,403.57 and 11,011.60 is: 15,195.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,785.21 : 20,403.57 = 11,011.60 : x
  2. Step 2: Convert to fraction form
    14,785.21/20,403.57 = 11,011.60/x
  3. Step 3: Cross multiply
    14,785.21x = 20,403.57 × 11,011.60
  4. Step 4: Simplify right side
    14,785.21x = 224,675,951.41
  5. Step 5: Solve for x
    x = 224,675,951.41/14,785.21
  6. Step 6: Final answer
    x = 15,195.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.