Home / 13,299.24-19,899.42-8,345.68

Finding the Fourth Proportional to 13,299.24, 19,899.42 and 8,345.68

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Solution

The fourth proportional to 13,299.24, 19,899.42 and 8,345.68 is: 12,487.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.24 : 19,899.42 = 8,345.68 : x
  2. Step 2: Convert to fraction form
    13,299.24/19,899.42 = 8,345.68/x
  3. Step 3: Cross multiply
    13,299.24x = 19,899.42 × 8,345.68
  4. Step 4: Simplify right side
    13,299.24x = 166,074,269.34
  5. Step 5: Solve for x
    x = 166,074,269.34/13,299.24
  6. Step 6: Final answer
    x = 12,487.50

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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.