Home / 12,852.09-19,279.28-5,354.06

Finding the Fourth Proportional to 12,852.09, 19,279.28 and 5,354.06

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Solution

The fourth proportional to 12,852.09, 19,279.28 and 5,354.06 is: 8,031.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,852.09 : 19,279.28 = 5,354.06 : x
  2. Step 2: Convert to fraction form
    12,852.09/19,279.28 = 5,354.06/x
  3. Step 3: Cross multiply
    12,852.09x = 19,279.28 × 5,354.06
  4. Step 4: Simplify right side
    12,852.09x = 103,222,338.87
  5. Step 5: Solve for x
    x = 103,222,338.87/12,852.09
  6. Step 6: Final answer
    x = 8,031.56

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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.