Home / 13,462.97-18,580.65-7,722.67

Finding the Fourth Proportional to 13,462.97, 18,580.65 and 7,722.67

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Solution

The fourth proportional to 13,462.97, 18,580.65 and 7,722.67 is: 10,658.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,462.97 : 18,580.65 = 7,722.67 : x
  2. Step 2: Convert to fraction form
    13,462.97/18,580.65 = 7,722.67/x
  3. Step 3: Cross multiply
    13,462.97x = 18,580.65 × 7,722.67
  4. Step 4: Simplify right side
    13,462.97x = 143,492,251.56
  5. Step 5: Solve for x
    x = 143,492,251.56/13,462.97
  6. Step 6: Final answer
    x = 10,658.29

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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.