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Finding the Fourth Proportional to 12,899.02, 17,800.14 and 7,310.02

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Solution

The fourth proportional to 12,899.02, 17,800.14 and 7,310.02 is: 10,087.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,899.02 : 17,800.14 = 7,310.02 : x
  2. Step 2: Convert to fraction form
    12,899.02/17,800.14 = 7,310.02/x
  3. Step 3: Cross multiply
    12,899.02x = 17,800.14 × 7,310.02
  4. Step 4: Simplify right side
    12,899.02x = 130,119,379.40
  5. Step 5: Solve for x
    x = 130,119,379.40/12,899.02
  6. Step 6: Final answer
    x = 10,087.54

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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.