Home / 18,667.49-28,003.95-6,821.84

Finding the Fourth Proportional to 18,667.49, 28,003.95 and 6,821.84

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Solution

The fourth proportional to 18,667.49, 28,003.95 and 6,821.84 is: 10,233.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667.49 : 28,003.95 = 6,821.84 : x
  2. Step 2: Convert to fraction form
    18,667.49/28,003.95 = 6,821.84/x
  3. Step 3: Cross multiply
    18,667.49x = 28,003.95 × 6,821.84
  4. Step 4: Simplify right side
    18,667.49x = 191,038,326.25
  5. Step 5: Solve for x
    x = 191,038,326.25/18,667.49
  6. Step 6: Final answer
    x = 10,233.75

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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.