Home / 13,916.60-20,882.07-6,521.80

Finding the Fourth Proportional to 13,916.60, 20,882.07 and 6,521.80

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Solution

The fourth proportional to 13,916.60, 20,882.07 and 6,521.80 is: 9,786.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.60 : 20,882.07 = 6,521.80 : x
  2. Step 2: Convert to fraction form
    13,916.60/20,882.07 = 6,521.80/x
  3. Step 3: Cross multiply
    13,916.60x = 20,882.07 × 6,521.80
  4. Step 4: Simplify right side
    13,916.60x = 136,188,710.23
  5. Step 5: Solve for x
    x = 136,188,710.23/13,916.60
  6. Step 6: Final answer
    x = 9,786.07

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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.