Home / 13,416.12-20,126.34-5,625.72

Finding the Fourth Proportional to 13,416.12, 20,126.34 and 5,625.72

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Solution

The fourth proportional to 13,416.12, 20,126.34 and 5,625.72 is: 8,439.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.12 : 20,126.34 = 5,625.72 : x
  2. Step 2: Convert to fraction form
    13,416.12/20,126.34 = 5,625.72/x
  3. Step 3: Cross multiply
    13,416.12x = 20,126.34 × 5,625.72
  4. Step 4: Simplify right side
    13,416.12x = 113,225,153.46
  5. Step 5: Solve for x
    x = 113,225,153.46/13,416.12
  6. Step 6: Final answer
    x = 8,439.49

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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.