Home / 13,285.85-18,334.59-7,317.73

Finding the Fourth Proportional to 13,285.85, 18,334.59 and 7,317.73

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Solution

The fourth proportional to 13,285.85, 18,334.59 and 7,317.73 is: 10,098.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.85 : 18,334.59 = 7,317.73 : x
  2. Step 2: Convert to fraction form
    13,285.85/18,334.59 = 7,317.73/x
  3. Step 3: Cross multiply
    13,285.85x = 18,334.59 × 7,317.73
  4. Step 4: Simplify right side
    13,285.85x = 134,167,579.28
  5. Step 5: Solve for x
    x = 134,167,579.28/13,285.85
  6. Step 6: Final answer
    x = 10,098.53

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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.