Home / 13,488.96-18,623.70-8,711.04

Finding the Fourth Proportional to 13,488.96, 18,623.70 and 8,711.04

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Solution

The fourth proportional to 13,488.96, 18,623.70 and 8,711.04 is: 12,027.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.96 : 18,623.70 = 8,711.04 : x
  2. Step 2: Convert to fraction form
    13,488.96/18,623.70 = 8,711.04/x
  3. Step 3: Cross multiply
    13,488.96x = 18,623.70 × 8,711.04
  4. Step 4: Simplify right side
    13,488.96x = 162,231,795.65
  5. Step 5: Solve for x
    x = 162,231,795.65/13,488.96
  6. Step 6: Final answer
    x = 12,027.01

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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.