Home / 17,980.12-26,966.94-12,764.80

Finding the Fourth Proportional to 17,980.12, 26,966.94 and 12,764.80

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Solution

The fourth proportional to 17,980.12, 26,966.94 and 12,764.80 is: 19,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,980.12 : 26,966.94 = 12,764.80 : x
  2. Step 2: Convert to fraction form
    17,980.12/26,966.94 = 12,764.80/x
  3. Step 3: Cross multiply
    17,980.12x = 26,966.94 × 12,764.80
  4. Step 4: Simplify right side
    17,980.12x = 344,227,595.71
  5. Step 5: Solve for x
    x = 344,227,595.71/17,980.12
  6. Step 6: Final answer
    x = 19,144.90

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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.