Home / 13,875.16-20,808.42-4,639

Finding the Fourth Proportional to 13,875.16, 20,808.42 and 4,639

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Solution

The fourth proportional to 13,875.16, 20,808.42 and 4,639 is: 6,957.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.16 : 20,808.42 = 4,639 : x
  2. Step 2: Convert to fraction form
    13,875.16/20,808.42 = 4,639/x
  3. Step 3: Cross multiply
    13,875.16x = 20,808.42 × 4,639
  4. Step 4: Simplify right side
    13,875.16x = 96,530,260.38
  5. Step 5: Solve for x
    x = 96,530,260.38/13,875.16
  6. Step 6: Final answer
    x = 6,957.06

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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.