Home / 12,949.16-17,865.68-7,645.28

Finding the Fourth Proportional to 12,949.16, 17,865.68 and 7,645.28

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Solution

The fourth proportional to 12,949.16, 17,865.68 and 7,645.28 is: 10,548.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949.16 : 17,865.68 = 7,645.28 : x
  2. Step 2: Convert to fraction form
    12,949.16/17,865.68 = 7,645.28/x
  3. Step 3: Cross multiply
    12,949.16x = 17,865.68 × 7,645.28
  4. Step 4: Simplify right side
    12,949.16x = 136,588,125.99
  5. Step 5: Solve for x
    x = 136,588,125.99/12,949.16
  6. Step 6: Final answer
    x = 10,548.03

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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.