Home / 13,305.23-18,360.86-7,336.80

Finding the Fourth Proportional to 13,305.23, 18,360.86 and 7,336.80

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Solution

The fourth proportional to 13,305.23, 18,360.86 and 7,336.80 is: 10,124.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.23 : 18,360.86 = 7,336.80 : x
  2. Step 2: Convert to fraction form
    13,305.23/18,360.86 = 7,336.80/x
  3. Step 3: Cross multiply
    13,305.23x = 18,360.86 × 7,336.80
  4. Step 4: Simplify right side
    13,305.23x = 134,709,957.65
  5. Step 5: Solve for x
    x = 134,709,957.65/13,305.23
  6. Step 6: Final answer
    x = 10,124.59

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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.