Home / 18,784.36-28,134.98-12,847.17

Finding the Fourth Proportional to 18,784.36, 28,134.98 and 12,847.17

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Solution

The fourth proportional to 18,784.36, 28,134.98 and 12,847.17 is: 19,242.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,784.36 : 28,134.98 = 12,847.17 : x
  2. Step 2: Convert to fraction form
    18,784.36/28,134.98 = 12,847.17/x
  3. Step 3: Cross multiply
    18,784.36x = 28,134.98 × 12,847.17
  4. Step 4: Simplify right side
    18,784.36x = 361,454,871.01
  5. Step 5: Solve for x
    x = 361,454,871.01/18,784.36
  6. Step 6: Final answer
    x = 19,242.33

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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.