Home / 12,966.20-17,886.48-7,932.92

Finding the Fourth Proportional to 12,966.20, 17,886.48 and 7,932.92

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Solution

The fourth proportional to 12,966.20, 17,886.48 and 7,932.92 is: 10,943.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966.20 : 17,886.48 = 7,932.92 : x
  2. Step 2: Convert to fraction form
    12,966.20/17,886.48 = 7,932.92/x
  3. Step 3: Cross multiply
    12,966.20x = 17,886.48 × 7,932.92
  4. Step 4: Simplify right side
    12,966.20x = 141,892,014.92
  5. Step 5: Solve for x
    x = 141,892,014.92/12,966.20
  6. Step 6: Final answer
    x = 10,943.22

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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.