Home / 13,875.11-20,807.96-4,512.81

Finding the Fourth Proportional to 13,875.11, 20,807.96 and 4,512.81

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Solution

The fourth proportional to 13,875.11, 20,807.96 and 4,512.81 is: 6,767.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.11 : 20,807.96 = 4,512.81 : x
  2. Step 2: Convert to fraction form
    13,875.11/20,807.96 = 4,512.81/x
  3. Step 3: Cross multiply
    13,875.11x = 20,807.96 × 4,512.81
  4. Step 4: Simplify right side
    13,875.11x = 93,902,346.91
  5. Step 5: Solve for x
    x = 93,902,346.91/13,875.11
  6. Step 6: Final answer
    x = 6,767.68

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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.