Home / 18,966.24-28,424.75-12,716.89

Finding the Fourth Proportional to 18,966.24, 28,424.75 and 12,716.89

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Solution

The fourth proportional to 18,966.24, 28,424.75 and 12,716.89 is: 19,058.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.24 : 28,424.75 = 12,716.89 : x
  2. Step 2: Convert to fraction form
    18,966.24/28,424.75 = 12,716.89/x
  3. Step 3: Cross multiply
    18,966.24x = 28,424.75 × 12,716.89
  4. Step 4: Simplify right side
    18,966.24x = 361,474,276.90
  5. Step 5: Solve for x
    x = 361,474,276.90/18,966.24
  6. Step 6: Final answer
    x = 19,058.83

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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.