Home / 13,266.32-19,866.68-8,320.96

Finding the Fourth Proportional to 13,266.32, 19,866.68 and 8,320.96

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Solution

The fourth proportional to 13,266.32, 19,866.68 and 8,320.96 is: 12,460.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.32 : 19,866.68 = 8,320.96 : x
  2. Step 2: Convert to fraction form
    13,266.32/19,866.68 = 8,320.96/x
  3. Step 3: Cross multiply
    13,266.32x = 19,866.68 × 8,320.96
  4. Step 4: Simplify right side
    13,266.32x = 165,309,849.61
  5. Step 5: Solve for x
    x = 165,309,849.61/13,266.32
  6. Step 6: Final answer
    x = 12,460.87

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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.