Home / 13,617.24-20,423.42-3,754.08

Finding the Fourth Proportional to 13,617.24, 20,423.42 and 3,754.08

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Solution

The fourth proportional to 13,617.24, 20,423.42 and 3,754.08 is: 5,630.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617.24 : 20,423.42 = 3,754.08 : x
  2. Step 2: Convert to fraction form
    13,617.24/20,423.42 = 3,754.08/x
  3. Step 3: Cross multiply
    13,617.24x = 20,423.42 × 3,754.08
  4. Step 4: Simplify right side
    13,617.24x = 76,671,133.78
  5. Step 5: Solve for x
    x = 76,671,133.78/13,617.24
  6. Step 6: Final answer
    x = 5,630.45

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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.