Home / 13,828.17-20,742.94-8,316.93

Finding the Fourth Proportional to 13,828.17, 20,742.94 and 8,316.93

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Solution

The fourth proportional to 13,828.17, 20,742.94 and 8,316.93 is: 12,475.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828.17 : 20,742.94 = 8,316.93 : x
  2. Step 2: Convert to fraction form
    13,828.17/20,742.94 = 8,316.93/x
  3. Step 3: Cross multiply
    13,828.17x = 20,742.94 × 8,316.93
  4. Step 4: Simplify right side
    13,828.17x = 172,517,504.69
  5. Step 5: Solve for x
    x = 172,517,504.69/13,828.17
  6. Step 6: Final answer
    x = 12,475.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.