Home / 13,458.60-20,180.70-4,693.80

Finding the Fourth Proportional to 13,458.60, 20,180.70 and 4,693.80

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Solution

The fourth proportional to 13,458.60, 20,180.70 and 4,693.80 is: 7,038.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.60 : 20,180.70 = 4,693.80 : x
  2. Step 2: Convert to fraction form
    13,458.60/20,180.70 = 4,693.80/x
  3. Step 3: Cross multiply
    13,458.60x = 20,180.70 × 4,693.80
  4. Step 4: Simplify right side
    13,458.60x = 94,724,169.66
  5. Step 5: Solve for x
    x = 94,724,169.66/13,458.60
  6. Step 6: Final answer
    x = 7,038.19

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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.