Home / 13,342.53-18,412.67-8,626.78

Finding the Fourth Proportional to 13,342.53, 18,412.67 and 8,626.78

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Solution

The fourth proportional to 13,342.53, 18,412.67 and 8,626.78 is: 11,904.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.53 : 18,412.67 = 8,626.78 : x
  2. Step 2: Convert to fraction form
    13,342.53/18,412.67 = 8,626.78/x
  3. Step 3: Cross multiply
    13,342.53x = 18,412.67 × 8,626.78
  4. Step 4: Simplify right side
    13,342.53x = 158,842,049.36
  5. Step 5: Solve for x
    x = 158,842,049.36/13,342.53
  6. Step 6: Final answer
    x = 11,904.94

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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.