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Finding the Fourth Proportional to 13,393.96, 18,483.33 and 7,425.61

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Solution

The fourth proportional to 13,393.96, 18,483.33 and 7,425.61 is: 10,247.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.96 : 18,483.33 = 7,425.61 : x
  2. Step 2: Convert to fraction form
    13,393.96/18,483.33 = 7,425.61/x
  3. Step 3: Cross multiply
    13,393.96x = 18,483.33 × 7,425.61
  4. Step 4: Simplify right side
    13,393.96x = 137,250,000.08
  5. Step 5: Solve for x
    x = 137,250,000.08/13,393.96
  6. Step 6: Final answer
    x = 10,247.16

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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.