Home / 19,318.21-28,973.88-8,785.75

Finding the Fourth Proportional to 19,318.21, 28,973.88 and 8,785.75

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Solution

The fourth proportional to 19,318.21, 28,973.88 and 8,785.75 is: 13,177.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318.21 : 28,973.88 = 8,785.75 : x
  2. Step 2: Convert to fraction form
    19,318.21/28,973.88 = 8,785.75/x
  3. Step 3: Cross multiply
    19,318.21x = 28,973.88 × 8,785.75
  4. Step 4: Simplify right side
    19,318.21x = 254,557,266.21
  5. Step 5: Solve for x
    x = 254,557,266.21/19,318.21
  6. Step 6: Final answer
    x = 13,177.06

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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.