Home / 13,318.92-18,370.62-9,340.92

Finding the Fourth Proportional to 13,318.92, 18,370.62 and 9,340.92

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Solution

The fourth proportional to 13,318.92, 18,370.62 and 9,340.92 is: 12,883.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.92 : 18,370.62 = 9,340.92 : x
  2. Step 2: Convert to fraction form
    13,318.92/18,370.62 = 9,340.92/x
  3. Step 3: Cross multiply
    13,318.92x = 18,370.62 × 9,340.92
  4. Step 4: Simplify right side
    13,318.92x = 171,598,491.77
  5. Step 5: Solve for x
    x = 171,598,491.77/13,318.92
  6. Step 6: Final answer
    x = 12,883.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.