Home / 12,869.20-19,304.34-5,472.64

Finding the Fourth Proportional to 12,869.20, 19,304.34 and 5,472.64

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Solution

The fourth proportional to 12,869.20, 19,304.34 and 5,472.64 is: 8,209.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,869.20 : 19,304.34 = 5,472.64 : x
  2. Step 2: Convert to fraction form
    12,869.20/19,304.34 = 5,472.64/x
  3. Step 3: Cross multiply
    12,869.20x = 19,304.34 × 5,472.64
  4. Step 4: Simplify right side
    12,869.20x = 105,645,703.26
  5. Step 5: Solve for x
    x = 105,645,703.26/12,869.20
  6. Step 6: Final answer
    x = 8,209.19

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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.