Home / 13,439.13-18,544.59-7,469.84

Finding the Fourth Proportional to 13,439.13, 18,544.59 and 7,469.84

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Solution

The fourth proportional to 13,439.13, 18,544.59 and 7,469.84 is: 10,307.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.13 : 18,544.59 = 7,469.84 : x
  2. Step 2: Convert to fraction form
    13,439.13/18,544.59 = 7,469.84/x
  3. Step 3: Cross multiply
    13,439.13x = 18,544.59 × 7,469.84
  4. Step 4: Simplify right side
    13,439.13x = 138,525,027.44
  5. Step 5: Solve for x
    x = 138,525,027.44/13,439.13
  6. Step 6: Final answer
    x = 10,307.59

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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.