Home / 13,785.24-20,687.05-8,858.41

Finding the Fourth Proportional to 13,785.24, 20,687.05 and 8,858.41

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Solution

The fourth proportional to 13,785.24, 20,687.05 and 8,858.41 is: 13,293.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.24 : 20,687.05 = 8,858.41 : x
  2. Step 2: Convert to fraction form
    13,785.24/20,687.05 = 8,858.41/x
  3. Step 3: Cross multiply
    13,785.24x = 20,687.05 × 8,858.41
  4. Step 4: Simplify right side
    13,785.24x = 183,254,396.48
  5. Step 5: Solve for x
    x = 183,254,396.48/13,785.24
  6. Step 6: Final answer
    x = 13,293.52

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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.