Home / 13,983.76-20,975.70-4,123.16

Finding the Fourth Proportional to 13,983.76, 20,975.70 and 4,123.16

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Solution

The fourth proportional to 13,983.76, 20,975.70 and 4,123.16 is: 6,184.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.76 : 20,975.70 = 4,123.16 : x
  2. Step 2: Convert to fraction form
    13,983.76/20,975.70 = 4,123.16/x
  3. Step 3: Cross multiply
    13,983.76x = 20,975.70 × 4,123.16
  4. Step 4: Simplify right side
    13,983.76x = 86,486,167.21
  5. Step 5: Solve for x
    x = 86,486,167.21/13,983.76
  6. Step 6: Final answer
    x = 6,184.76

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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.