Home / 13,389.16-20,083.90-6,369.92

Finding the Fourth Proportional to 13,389.16, 20,083.90 and 6,369.92

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Solution

The fourth proportional to 13,389.16, 20,083.90 and 6,369.92 is: 9,554.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.16 : 20,083.90 = 6,369.92 : x
  2. Step 2: Convert to fraction form
    13,389.16/20,083.90 = 6,369.92/x
  3. Step 3: Cross multiply
    13,389.16x = 20,083.90 × 6,369.92
  4. Step 4: Simplify right side
    13,389.16x = 127,932,836.29
  5. Step 5: Solve for x
    x = 127,932,836.29/13,389.16
  6. Step 6: Final answer
    x = 9,554.96

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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.