Home / 12,809.28-19,221.12-6,966.30

Finding the Fourth Proportional to 12,809.28, 19,221.12 and 6,966.30

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Solution

The fourth proportional to 12,809.28, 19,221.12 and 6,966.30 is: 10,453.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,809.28 : 19,221.12 = 6,966.30 : x
  2. Step 2: Convert to fraction form
    12,809.28/19,221.12 = 6,966.30/x
  3. Step 3: Cross multiply
    12,809.28x = 19,221.12 × 6,966.30
  4. Step 4: Simplify right side
    12,809.28x = 133,900,088.26
  5. Step 5: Solve for x
    x = 133,900,088.26/12,809.28
  6. Step 6: Final answer
    x = 10,453.37

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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.