Home / 14,801.96-20,426.70-8,428.22

Finding the Fourth Proportional to 14,801.96, 20,426.70 and 8,428.22

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Solution

The fourth proportional to 14,801.96, 20,426.70 and 8,428.22 is: 11,630.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,801.96 : 20,426.70 = 8,428.22 : x
  2. Step 2: Convert to fraction form
    14,801.96/20,426.70 = 8,428.22/x
  3. Step 3: Cross multiply
    14,801.96x = 20,426.70 × 8,428.22
  4. Step 4: Simplify right side
    14,801.96x = 172,160,679.33
  5. Step 5: Solve for x
    x = 172,160,679.33/14,801.96
  6. Step 6: Final answer
    x = 11,630.94

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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.