Home / 12,305.10-16,982.40-7,000.94

Finding the Fourth Proportional to 12,305.10, 16,982.40 and 7,000.94

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Solution

The fourth proportional to 12,305.10, 16,982.40 and 7,000.94 is: 9,662.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305.10 : 16,982.40 = 7,000.94 : x
  2. Step 2: Convert to fraction form
    12,305.10/16,982.40 = 7,000.94/x
  3. Step 3: Cross multiply
    12,305.10x = 16,982.40 × 7,000.94
  4. Step 4: Simplify right side
    12,305.10x = 118,892,763.46
  5. Step 5: Solve for x
    x = 118,892,763.46/12,305.10
  6. Step 6: Final answer
    x = 9,662.07

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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.