Home / 13,305.48-18,361.32-7,337.70

Finding the Fourth Proportional to 13,305.48, 18,361.32 and 7,337.70

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Solution

The fourth proportional to 13,305.48, 18,361.32 and 7,337.70 is: 10,125.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.48 : 18,361.32 = 7,337.70 : x
  2. Step 2: Convert to fraction form
    13,305.48/18,361.32 = 7,337.70/x
  3. Step 3: Cross multiply
    13,305.48x = 18,361.32 × 7,337.70
  4. Step 4: Simplify right side
    13,305.48x = 134,729,857.76
  5. Step 5: Solve for x
    x = 134,729,857.76/13,305.48
  6. Step 6: Final answer
    x = 10,125.89

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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.