Home / 18,111.90-27,155.70-8,246.10

Finding the Fourth Proportional to 18,111.90, 27,155.70 and 8,246.10

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Solution

The fourth proportional to 18,111.90, 27,155.70 and 8,246.10 is: 12,363.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,111.90 : 27,155.70 = 8,246.10 : x
  2. Step 2: Convert to fraction form
    18,111.90/27,155.70 = 8,246.10/x
  3. Step 3: Cross multiply
    18,111.90x = 27,155.70 × 8,246.10
  4. Step 4: Simplify right side
    18,111.90x = 223,928,617.77
  5. Step 5: Solve for x
    x = 223,928,617.77/18,111.90
  6. Step 6: Final answer
    x = 12,363.62

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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.