Home / 13,763.60-18,993.76-7,475.96

Finding the Fourth Proportional to 13,763.60, 18,993.76 and 7,475.96

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Solution

The fourth proportional to 13,763.60, 18,993.76 and 7,475.96 is: 10,316.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.60 : 18,993.76 = 7,475.96 : x
  2. Step 2: Convert to fraction form
    13,763.60/18,993.76 = 7,475.96/x
  3. Step 3: Cross multiply
    13,763.60x = 18,993.76 × 7,475.96
  4. Step 4: Simplify right side
    13,763.60x = 141,996,590.01
  5. Step 5: Solve for x
    x = 141,996,590.01/13,763.60
  6. Step 6: Final answer
    x = 10,316.82

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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.