Home / 13,423.77-20,133.05-3,937.23

Finding the Fourth Proportional to 13,423.77, 20,133.05 and 3,937.23

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Solution

The fourth proportional to 13,423.77, 20,133.05 and 3,937.23 is: 5,905.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.77 : 20,133.05 = 3,937.23 : x
  2. Step 2: Convert to fraction form
    13,423.77/20,133.05 = 3,937.23/x
  3. Step 3: Cross multiply
    13,423.77x = 20,133.05 × 3,937.23
  4. Step 4: Simplify right side
    13,423.77x = 79,268,428.77
  5. Step 5: Solve for x
    x = 79,268,428.77/13,423.77
  6. Step 6: Final answer
    x = 5,905.08

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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.