Home / 13,605.30-20,398.77-4,718.34

Finding the Fourth Proportional to 13,605.30, 20,398.77 and 4,718.34

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Solution

The fourth proportional to 13,605.30, 20,398.77 and 4,718.34 is: 7,074.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,605.30 : 20,398.77 = 4,718.34 : x
  2. Step 2: Convert to fraction form
    13,605.30/20,398.77 = 4,718.34/x
  3. Step 3: Cross multiply
    13,605.30x = 20,398.77 × 4,718.34
  4. Step 4: Simplify right side
    13,605.30x = 96,248,332.44
  5. Step 5: Solve for x
    x = 96,248,332.44/13,605.30
  6. Step 6: Final answer
    x = 7,074.33

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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.