Home / 12,897.28-19,344.48-3,663.04

Finding the Fourth Proportional to 12,897.28, 19,344.48 and 3,663.04

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Solution

The fourth proportional to 12,897.28, 19,344.48 and 3,663.04 is: 5,494.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.28 : 19,344.48 = 3,663.04 : x
  2. Step 2: Convert to fraction form
    12,897.28/19,344.48 = 3,663.04/x
  3. Step 3: Cross multiply
    12,897.28x = 19,344.48 × 3,663.04
  4. Step 4: Simplify right side
    12,897.28x = 70,859,604.02
  5. Step 5: Solve for x
    x = 70,859,604.02/12,897.28
  6. Step 6: Final answer
    x = 5,494.15

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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.