Home / 13,426.30-20,139.35-4,066.30

Finding the Fourth Proportional to 13,426.30, 20,139.35 and 4,066.30

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Solution

The fourth proportional to 13,426.30, 20,139.35 and 4,066.30 is: 6,099.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.30 : 20,139.35 = 4,066.30 : x
  2. Step 2: Convert to fraction form
    13,426.30/20,139.35 = 4,066.30/x
  3. Step 3: Cross multiply
    13,426.30x = 20,139.35 × 4,066.30
  4. Step 4: Simplify right side
    13,426.30x = 81,892,638.91
  5. Step 5: Solve for x
    x = 81,892,638.91/13,426.30
  6. Step 6: Final answer
    x = 6,099.42

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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.