Home / 15,500.46-21,390.67-8,426.83

Finding the Fourth Proportional to 15,500.46, 21,390.67 and 8,426.83

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Solution

The fourth proportional to 15,500.46, 21,390.67 and 8,426.83 is: 11,629.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,500.46 : 21,390.67 = 8,426.83 : x
  2. Step 2: Convert to fraction form
    15,500.46/21,390.67 = 8,426.83/x
  3. Step 3: Cross multiply
    15,500.46x = 21,390.67 × 8,426.83
  4. Step 4: Simplify right side
    15,500.46x = 180,255,497.54
  5. Step 5: Solve for x
    x = 180,255,497.54/15,500.46
  6. Step 6: Final answer
    x = 11,629.04

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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.