Home / 13,582.60-20,379.75-7,347

Finding the Fourth Proportional to 13,582.60, 20,379.75 and 7,347

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Solution

The fourth proportional to 13,582.60, 20,379.75 and 7,347 is: 11,023.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582.60 : 20,379.75 = 7,347 : x
  2. Step 2: Convert to fraction form
    13,582.60/20,379.75 = 7,347/x
  3. Step 3: Cross multiply
    13,582.60x = 20,379.75 × 7,347
  4. Step 4: Simplify right side
    13,582.60x = 149,730,023.25
  5. Step 5: Solve for x
    x = 149,730,023.25/13,582.60
  6. Step 6: Final answer
    x = 11,023.67

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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.