Home / 13,423.43-18,526.04-8,118.28

Finding the Fourth Proportional to 13,423.43, 18,526.04 and 8,118.28

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Solution

The fourth proportional to 13,423.43, 18,526.04 and 8,118.28 is: 11,204.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.43 : 18,526.04 = 8,118.28 : x
  2. Step 2: Convert to fraction form
    13,423.43/18,526.04 = 8,118.28/x
  3. Step 3: Cross multiply
    13,423.43x = 18,526.04 × 8,118.28
  4. Step 4: Simplify right side
    13,423.43x = 150,399,593.02
  5. Step 5: Solve for x
    x = 150,399,593.02/13,423.43
  6. Step 6: Final answer
    x = 11,204.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.