Home / 10,539.63-15,811.38-3,518.98

Finding the Fourth Proportional to 10,539.63, 15,811.38 and 3,518.98

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Solution

The fourth proportional to 10,539.63, 15,811.38 and 3,518.98 is: 5,279.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,539.63 : 15,811.38 = 3,518.98 : x
  2. Step 2: Convert to fraction form
    10,539.63/15,811.38 = 3,518.98/x
  3. Step 3: Cross multiply
    10,539.63x = 15,811.38 × 3,518.98
  4. Step 4: Simplify right side
    10,539.63x = 55,639,920.11
  5. Step 5: Solve for x
    x = 55,639,920.11/10,539.63
  6. Step 6: Final answer
    x = 5,279.12

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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.