Home / 13,605.48-20,395.26-4,365

Finding the Fourth Proportional to 13,605.48, 20,395.26 and 4,365

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Solution

The fourth proportional to 13,605.48, 20,395.26 and 4,365 is: 6,543.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,605.48 : 20,395.26 = 4,365 : x
  2. Step 2: Convert to fraction form
    13,605.48/20,395.26 = 4,365/x
  3. Step 3: Cross multiply
    13,605.48x = 20,395.26 × 4,365
  4. Step 4: Simplify right side
    13,605.48x = 89,025,309.90
  5. Step 5: Solve for x
    x = 89,025,309.90/13,605.48
  6. Step 6: Final answer
    x = 6,543.34

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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.