Home / 13,980.60-19,285.04-8,942.96

Finding the Fourth Proportional to 13,980.60, 19,285.04 and 8,942.96

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Solution

The fourth proportional to 13,980.60, 19,285.04 and 8,942.96 is: 12,336.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980.60 : 19,285.04 = 8,942.96 : x
  2. Step 2: Convert to fraction form
    13,980.60/19,285.04 = 8,942.96/x
  3. Step 3: Cross multiply
    13,980.60x = 19,285.04 × 8,942.96
  4. Step 4: Simplify right side
    13,980.60x = 172,465,253.11
  5. Step 5: Solve for x
    x = 172,465,253.11/13,980.60
  6. Step 6: Final answer
    x = 12,336.04

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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.