Home / 12,182.96-18,281.95-4,786.11

Finding the Fourth Proportional to 12,182.96, 18,281.95 and 4,786.11

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Solution

The fourth proportional to 12,182.96, 18,281.95 and 4,786.11 is: 7,182.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,182.96 : 18,281.95 = 4,786.11 : x
  2. Step 2: Convert to fraction form
    12,182.96/18,281.95 = 4,786.11/x
  3. Step 3: Cross multiply
    12,182.96x = 18,281.95 × 4,786.11
  4. Step 4: Simplify right side
    12,182.96x = 87,499,490.09
  5. Step 5: Solve for x
    x = 87,499,490.09/12,182.96
  6. Step 6: Final answer
    x = 7,182.12

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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.