Home / 13,852.81-20,786.10-6,457.83

Finding the Fourth Proportional to 13,852.81, 20,786.10 and 6,457.83

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Solution

The fourth proportional to 13,852.81, 20,786.10 and 6,457.83 is: 9,689.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,852.81 : 20,786.10 = 6,457.83 : x
  2. Step 2: Convert to fraction form
    13,852.81/20,786.10 = 6,457.83/x
  3. Step 3: Cross multiply
    13,852.81x = 20,786.10 × 6,457.83
  4. Step 4: Simplify right side
    13,852.81x = 134,233,100.16
  5. Step 5: Solve for x
    x = 134,233,100.16/13,852.81
  6. Step 6: Final answer
    x = 9,689.95

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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.