Home / 12,749.30-19,095.09-6,815.69

Finding the Fourth Proportional to 12,749.30, 19,095.09 and 6,815.69

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Solution

The fourth proportional to 12,749.30, 19,095.09 and 6,815.69 is: 10,208.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,749.30 : 19,095.09 = 6,815.69 : x
  2. Step 2: Convert to fraction form
    12,749.30/19,095.09 = 6,815.69/x
  3. Step 3: Cross multiply
    12,749.30x = 19,095.09 × 6,815.69
  4. Step 4: Simplify right side
    12,749.30x = 130,146,310.28
  5. Step 5: Solve for x
    x = 130,146,310.28/12,749.30
  6. Step 6: Final answer
    x = 10,208.12

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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.