Home / 13,458.79-20,188.26-4,693.71

Finding the Fourth Proportional to 13,458.79, 20,188.26 and 4,693.71

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Solution

The fourth proportional to 13,458.79, 20,188.26 and 4,693.71 is: 7,040.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.79 : 20,188.26 = 4,693.71 : x
  2. Step 2: Convert to fraction form
    13,458.79/20,188.26 = 4,693.71/x
  3. Step 3: Cross multiply
    13,458.79x = 20,188.26 × 4,693.71
  4. Step 4: Simplify right side
    13,458.79x = 94,757,837.84
  5. Step 5: Solve for x
    x = 94,757,837.84/13,458.79
  6. Step 6: Final answer
    x = 7,040.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.