Home / 13,423.34-20,122.58-5,100.86

Finding the Fourth Proportional to 13,423.34, 20,122.58 and 5,100.86

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Solution

The fourth proportional to 13,423.34, 20,122.58 and 5,100.86 is: 7,646.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.34 : 20,122.58 = 5,100.86 : x
  2. Step 2: Convert to fraction form
    13,423.34/20,122.58 = 5,100.86/x
  3. Step 3: Cross multiply
    13,423.34x = 20,122.58 × 5,100.86
  4. Step 4: Simplify right side
    13,423.34x = 102,642,463.42
  5. Step 5: Solve for x
    x = 102,642,463.42/13,423.34
  6. Step 6: Final answer
    x = 7,646.57

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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.