Home / 13,285.44-18,333.70-7,317.66

Finding the Fourth Proportional to 13,285.44, 18,333.70 and 7,317.66

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Solution

The fourth proportional to 13,285.44, 18,333.70 and 7,317.66 is: 10,098.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.44 : 18,333.70 = 7,317.66 : x
  2. Step 2: Convert to fraction form
    13,285.44/18,333.70 = 7,317.66/x
  3. Step 3: Cross multiply
    13,285.44x = 18,333.70 × 7,317.66
  4. Step 4: Simplify right side
    13,285.44x = 134,159,783.14
  5. Step 5: Solve for x
    x = 134,159,783.14/13,285.44
  6. Step 6: Final answer
    x = 10,098.26

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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.