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Finding the Fourth Proportional to 13,423.01, 18,523.98 and 7,455.23

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Solution

The fourth proportional to 13,423.01, 18,523.98 and 7,455.23 is: 10,288.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.01 : 18,523.98 = 7,455.23 : x
  2. Step 2: Convert to fraction form
    13,423.01/18,523.98 = 7,455.23/x
  3. Step 3: Cross multiply
    13,423.01x = 18,523.98 × 7,455.23
  4. Step 4: Simplify right side
    13,423.01x = 138,100,438.80
  5. Step 5: Solve for x
    x = 138,100,438.80/13,423.01
  6. Step 6: Final answer
    x = 10,288.34

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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.