Home / 14,568.12-20,103.12-8,280.36

Finding the Fourth Proportional to 14,568.12, 20,103.12 and 8,280.36

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Solution

The fourth proportional to 14,568.12, 20,103.12 and 8,280.36 is: 11,426.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,568.12 : 20,103.12 = 8,280.36 : x
  2. Step 2: Convert to fraction form
    14,568.12/20,103.12 = 8,280.36/x
  3. Step 3: Cross multiply
    14,568.12x = 20,103.12 × 8,280.36
  4. Step 4: Simplify right side
    14,568.12x = 166,461,070.72
  5. Step 5: Solve for x
    x = 166,461,070.72/14,568.12
  6. Step 6: Final answer
    x = 11,426.39

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Double scale
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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.