Home / 13,011.72-19,520.60-4,246.68

Finding the Fourth Proportional to 13,011.72, 19,520.60 and 4,246.68

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Solution

The fourth proportional to 13,011.72, 19,520.60 and 4,246.68 is: 6,371.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.72 : 19,520.60 = 4,246.68 : x
  2. Step 2: Convert to fraction form
    13,011.72/19,520.60 = 4,246.68/x
  3. Step 3: Cross multiply
    13,011.72x = 19,520.60 × 4,246.68
  4. Step 4: Simplify right side
    13,011.72x = 82,897,741.61
  5. Step 5: Solve for x
    x = 82,897,741.61/13,011.72
  6. Step 6: Final answer
    x = 6,371.01

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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.