Home / 13,423.79-18,524.20-7,455.83

Finding the Fourth Proportional to 13,423.79, 18,524.20 and 7,455.83

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Solution

The fourth proportional to 13,423.79, 18,524.20 and 7,455.83 is: 10,288.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.79 : 18,524.20 = 7,455.83 : x
  2. Step 2: Convert to fraction form
    13,423.79/18,524.20 = 7,455.83/x
  3. Step 3: Cross multiply
    13,423.79x = 18,524.20 × 7,455.83
  4. Step 4: Simplify right side
    13,423.79x = 138,113,286.09
  5. Step 5: Solve for x
    x = 138,113,286.09/13,423.79
  6. Step 6: Final answer
    x = 10,288.70

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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.