Home / 13,207.81-19,812.63-3,847.91

Finding the Fourth Proportional to 13,207.81, 19,812.63 and 3,847.91

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Solution

The fourth proportional to 13,207.81, 19,812.63 and 3,847.91 is: 5,772.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.81 : 19,812.63 = 3,847.91 : x
  2. Step 2: Convert to fraction form
    13,207.81/19,812.63 = 3,847.91/x
  3. Step 3: Cross multiply
    13,207.81x = 19,812.63 × 3,847.91
  4. Step 4: Simplify right side
    13,207.81x = 76,237,217.10
  5. Step 5: Solve for x
    x = 76,237,217.10/13,207.81
  6. Step 6: Final answer
    x = 5,772.13

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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.