Home / 18,783.36-28,133.48-12,846.17

Finding the Fourth Proportional to 18,783.36, 28,133.48 and 12,846.17

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Solution

The fourth proportional to 18,783.36, 28,133.48 and 12,846.17 is: 19,240.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.36 : 28,133.48 = 12,846.17 : x
  2. Step 2: Convert to fraction form
    18,783.36/28,133.48 = 12,846.17/x
  3. Step 3: Cross multiply
    18,783.36x = 28,133.48 × 12,846.17
  4. Step 4: Simplify right side
    18,783.36x = 361,407,358.22
  5. Step 5: Solve for x
    x = 361,407,358.22/18,783.36
  6. Step 6: Final answer
    x = 19,240.82

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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.