Home / 13,285.82-18,334.50-7,317.62

Finding the Fourth Proportional to 13,285.82, 18,334.50 and 7,317.62

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Solution

The fourth proportional to 13,285.82, 18,334.50 and 7,317.62 is: 10,098.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.82 : 18,334.50 = 7,317.62 : x
  2. Step 2: Convert to fraction form
    13,285.82/18,334.50 = 7,317.62/x
  3. Step 3: Cross multiply
    13,285.82x = 18,334.50 × 7,317.62
  4. Step 4: Simplify right side
    13,285.82x = 134,164,903.89
  5. Step 5: Solve for x
    x = 134,164,903.89/13,285.82
  6. Step 6: Final answer
    x = 10,098.35

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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.