Home / 13,275.94-18,318.66-7,609.65

Finding the Fourth Proportional to 13,275.94, 18,318.66 and 7,609.65

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Solution

The fourth proportional to 13,275.94, 18,318.66 and 7,609.65 is: 10,500.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.94 : 18,318.66 = 7,609.65 : x
  2. Step 2: Convert to fraction form
    13,275.94/18,318.66 = 7,609.65/x
  3. Step 3: Cross multiply
    13,275.94x = 18,318.66 × 7,609.65
  4. Step 4: Simplify right side
    13,275.94x = 139,398,575.88
  5. Step 5: Solve for x
    x = 139,398,575.88/13,275.94
  6. Step 6: Final answer
    x = 10,500.09

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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.