Home / 13,423.86-18,517.47-12,473.54

Finding the Fourth Proportional to 13,423.86, 18,517.47 and 12,473.54

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Solution

The fourth proportional to 13,423.86, 18,517.47 and 12,473.54 is: 17,206.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.86 : 18,517.47 = 12,473.54 : x
  2. Step 2: Convert to fraction form
    13,423.86/18,517.47 = 12,473.54/x
  3. Step 3: Cross multiply
    13,423.86x = 18,517.47 × 12,473.54
  4. Step 4: Simplify right side
    13,423.86x = 230,978,402.26
  5. Step 5: Solve for x
    x = 230,978,402.26/13,423.86
  6. Step 6: Final answer
    x = 17,206.55

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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.